Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | |||||
{[ item.p_purity ]} | {[ item.pr_size ]} |
{[ getRatePrice(item.pr_usd, 1,1) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate) ]} |
{[ getRatePrice(item.pr_usd, 1,1) ]} | {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate) ]} | {[ item.pr_usastock ]} | Inquiry - | {[ item.pr_chinastock ]} | Inquiry - |
* Storage: {[proInfo.prStorage]}
CAS No. : | 1025735-46-9 | MDL No. : | MFCD08572151 |
Formula : | C11H13BN2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | RBSKBRQNRWKHSP-UHFFFAOYSA-N |
M.W : | 216.04 g/mol | Pubchem ID : | 16640550 |
Synonyms : |
|
Num. heavy atoms : | 16 |
Num. arom. heavy atoms : | 11 |
Fraction Csp3 : | 0.18 |
Num. rotatable bonds : | 2 |
Num. H-bond acceptors : | 3.0 |
Num. H-bond donors : | 2.0 |
Molar Refractivity : | 63.32 |
TPSA : | 58.28 Ų |
GI absorption : | High |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.48 cm/s |
Log Po/w (iLOGP) : | 0.0 |
Log Po/w (XLOGP3) : | 1.6 |
Log Po/w (WLOGP) : | 0.17 |
Log Po/w (MLOGP) : | 0.59 |
Log Po/w (SILICOS-IT) : | -0.19 |
Consensus Log Po/w : | 0.43 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 0.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -2.56 |
Solubility : | 0.589 mg/ml ; 0.00273 mol/l |
Class : | Soluble |
Log S (Ali) : | -2.44 |
Solubility : | 0.793 mg/ml ; 0.00367 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -2.6 |
Solubility : | 0.543 mg/ml ; 0.00251 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 1.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.29 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P280-P301+P312-P302+P352-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
![]() |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72% | With potassium phosphate; palladium diacetate; tris-(o-tolyl)phosphine In tetrahydrofuran for 22h; Inert atmosphere; Reflux; | 35 tert-butyl 2-(3-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl)acetate mixture of (3-(3,5-dimethyl-l pyrazol-l-yl)phenyl)boronic acid (Intermediate 9) (10.8 g, 50 mmol), fe/f-butyl 2-bromoacetate (14.6 g, 75 mmol), tri-o-tolylphosphine (1.5 g, 4.93 mmol), Pd(OAc)2 (700 mg, 3.12 mmol), powdered tripotassium phosphate (42.5 g, 200 mmol) and tetrahydrofuran (100 mL) was degassed under nitrogen/vacuum cycles and was heated at reflux for 16h. LCMS analysis shows ~ 70% conversion. Further palladium acetate (300 mg) and fe/f-butyl 2- bromoacetate (3 g) were added and the mixture was refluxed for 6 h. LCMS shows no starting material and the presence of product. The mixture was partitioned between water (200 mL) and EtOAc (2 x 200 mL) and the dried (MgS04). The organic phase was evaporated and the residue was purified by chromatography on a silica cartridge (330 g) eluting with 0-40% ethyl acetate- cyclohexane (15CV) to give the title compound (10.4 g, 72%) as a yellow oil: LCMS (Method C) RT=1.18 min, ES+ve m/z2S7 (M+H)+. |
72% | Stage #1: bromoacetic acid <i>tert</i>-butyl ester; (3-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl)boronic acid With potassium phosphate; dichlorobis(tri-O-tolylphosphine)palladium In tetrahydrofuran for 16h; Inert atmosphere; Reflux; Stage #2: With palladium diacetate In tetrahydrofuran for 6h; Reflux; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
57% | With n-butyllithium; In tetrahydrofuran; at -78℃; for 3.0h;Inert atmosphere; | A solution of l-(3-bromophenyl)-3,5-dimethyl-l pyrazole (intermediate 8) (30 g, 119 mmol) in THF (500 mL) was treated with triisopropyl borate (available from Avra) (41.6 mL, 179 mmol), cooled to -78 C, treated dropwise with 2.5 M nBuLi (119 mL, 299 mmol) over 1 h under argon, and stirred for 2 h at -78 C. The reaction mixture was quenched with aqueous HCI solution (2M, 150 mL), neutralised with 2M NaOH solution, and extracted with ethyl acetate (2 x 300 mL). The combined organic solutions were dried over Na2S04 and concentrated under reduced pressure. The residue was triturated with pentane and diethyl ether (1: 1) and the solid was collected by filtration to give the title compound '(15 g, 57%) as an off-white solid: MS ES+ve m/z 2l (M+H)+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: sulfuric acid / dichloromethane / 16 h / 20 °C / Inert atmosphere 2: n-butyllithium / tetrahydrofuran / 3 h / -78 °C / Inert atmosphere | ||
Multi-step reaction with 2 steps 1: potassium acetate / ethanol / 2 h / Reflux 2: n-butyllithium; Triisopropyl borate / tetrahydrofuran / 3 h / -78 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2: trifluoroacetic acid / dichloromethane / 2 h / 20 °C | ||
Multi-step reaction with 2 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux | ||
Multi-step reaction with 3 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C | ||
Multi-step reaction with 4 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 5 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: pivaloyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.75 h / -78 - 0 °C / Inert atmosphere 3.2: -78 - 20 °C 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 2 h / 4 °C / Cooling with ice | ||
Multi-step reaction with 6 steps 1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C 5: Chiralcel OD-H Column / hexane; isopropyl alcohol / Resolution of racemate 6: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 0 °C / Cooling with ice | ||
Multi-step reaction with 5 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: lithium hydroxide; dihydrogen peroxide / tetrahydrofuran / 2 h / 4 °C |
Multi-step reaction with 6 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C 5.1: HPLC on a Chiralcel OD-Hcolumn / Resolution of racemate 6.1: lithium hydroxide; dihydrogen peroxide / water; tetrahydrofuran / 16 h / 4 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 5 steps 1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C 5: Chiralcel OD-H Column / hexane; isopropyl alcohol / Resolution of racemate | ||
Multi-step reaction with 5 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C 5.1: HPLC on a Chiralcel OD-Hcolumn / Resolution of racemate |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 5 steps 1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C 5: Chiralcel OD-H Column / hexane; isopropyl alcohol / Resolution of racemate | ||
Multi-step reaction with 5 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C 5.1: HPLC on a Chiralcel OD-Hcolumn / Resolution of racemate |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 6 steps 1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C 5: Chiralcel OD-H Column / hexane; isopropyl alcohol / Resolution of racemate 6: dihydrogen peroxide; lithium hydroxide / water; 2-methyltetrahydrofuran / 144 h / 0 °C / Cooling with ice | ||
Multi-step reaction with 5 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: lithium hydroxide; dihydrogen peroxide / tetrahydrofuran / 2 h / 4 °C | ||
Multi-step reaction with 6 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C 5.1: HPLC on a Chiralcel OD-Hcolumn / Resolution of racemate 6.1: lithium hydroxide; dihydrogen peroxide / water; tetrahydrofuran / 16 h / 4 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: pivaloyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.75 h / -78 - 0 °C / Inert atmosphere 3.2: -78 - 20 °C | ||
Multi-step reaction with 3 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: pivaloyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.75 h / -78 - 0 °C / Inert atmosphere 3.2: -78 - 20 °C 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 6 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: pivaloyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.75 h / -78 - 0 °C / Inert atmosphere 3.2: -78 - 20 °C 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 2 h / 4 °C / Cooling with ice 6.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 6.2: 2 h / 20 °C | ||
Multi-step reaction with 7 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C 5.1: Chiralcel OD-H Column / hexane; isopropyl alcohol / Resolution of racemate 6.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 0 °C / Cooling with ice 7.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 7.2: 2 h / 20 °C | ||
Multi-step reaction with 6 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: lithium hydroxide; dihydrogen peroxide / tetrahydrofuran / 2 h / 4 °C 6.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 6.2: 2 h / 20 °C |
Multi-step reaction with 7 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C 5.1: HPLC on a Chiralcel OD-Hcolumn / Resolution of racemate 6.1: lithium hydroxide; dihydrogen peroxide / water; tetrahydrofuran / 16 h / 4 °C 7.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 7.2: 2 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 7 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: pivaloyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.75 h / -78 - 0 °C / Inert atmosphere 3.2: -78 - 20 °C 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 2 h / 4 °C / Cooling with ice 6.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 6.2: 2 h / 20 °C 7.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 120 h | ||
Multi-step reaction with 8 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C 5.1: Chiralcel OD-H Column / hexane; isopropyl alcohol / Resolution of racemate 6.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 0 °C / Cooling with ice 7.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 7.2: 2 h / 20 °C 8.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 120 h | ||
Multi-step reaction with 7 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: lithium hydroxide; dihydrogen peroxide / tetrahydrofuran / 2 h / 4 °C 6.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 6.2: 2 h / 20 °C 7.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 96 h |
Multi-step reaction with 8 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C 5.1: HPLC on a Chiralcel OD-Hcolumn / Resolution of racemate 6.1: lithium hydroxide; dihydrogen peroxide / water; tetrahydrofuran / 16 h / 4 °C 7.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 7.2: 2 h / 20 °C 8.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 96 h |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 8 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: pivaloyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.75 h / -78 - 0 °C / Inert atmosphere 3.2: -78 - 20 °C 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 2 h / 4 °C / Cooling with ice 6.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 6.2: 2 h / 20 °C 7.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 120 h 8.1: trifluoroacetic acid / chloroform / 2 h / 20 °C | ||
Multi-step reaction with 9 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C 5.1: Chiralcel OD-H Column / hexane; isopropyl alcohol / Resolution of racemate 6.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 0 °C / Cooling with ice 7.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 7.2: 2 h / 20 °C 8.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 120 h 9.1: trifluoroacetic acid / chloroform / 2 h / 20 °C | ||
Multi-step reaction with 8 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: lithium hydroxide; dihydrogen peroxide / tetrahydrofuran / 2 h / 4 °C 6.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 6.2: 2 h / 20 °C 7.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 96 h 8.1: trifluoroacetic acid / chloroform / 2 h / 20 °C |
Multi-step reaction with 9 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C 5.1: HPLC on a Chiralcel OD-Hcolumn / Resolution of racemate 6.1: lithium hydroxide; dihydrogen peroxide / water; tetrahydrofuran / 16 h / 4 °C 7.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 7.2: 2 h / 20 °C 8.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 96 h 9.1: trifluoroacetic acid / chloroform / 2 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 5 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / water; toluene / 5 h / 75 - 85 °C / Inert atmosphere; Large scale 2: hydrogen; rhodium contaminated with carbon / methanol / 26 h / 35 - 45 °C / 2250.23 Torr / Inert atmosphere; Large scale 3: silica thiol / methanol / 10 h / 60 - 70 °C / pH Ca. 1 / Large scale 4: hydrogenchloride / acetonitrile; water / 0.67 h / 35 °C / Large scale 5: lithium aluminium tetrahydride / tetrahydrofuran; diethyl ether / 1.5 h / 20 °C / Inert atmosphere | ||
Multi-step reaction with 5 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / 1,4-dioxane / 1.17 h / 90 °C / Inert atmosphere 2: palladium 10% on activated carbon; hydrogen / ethanol / 20 °C 3: hydrogenchloride; water / 2-methyltetrahydrofuran / 2 h / 40 °C 4: hydrogenchloride / acetonitrile; water / 0.67 h / 35 °C / Large scale 5: lithium aluminium tetrahydride / tetrahydrofuran; diethyl ether / 1.5 h / 20 °C / Inert atmosphere | ||
Multi-step reaction with 4 steps 1: R-(+)-1,1'-binaphthyl-2,2'-diphenylphosphine; chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium hydroxide / 1,4-dioxane / 1 h / 90 °C / Inert atmosphere 2: hydrogen; palladium 10% on activated carbon / ethanol / 20 °C 3: hydrogenchloride / 2-methyltetrahydrofuran / 2 h / 40 °C 4: lithium aluminium tetrahydride / tetrahydrofuran / 1.5 h / 20 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 10 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: cyclopentyl methyl ether; hydrogenchloride / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 3.08 h / -78 - 20 °C 5.1: Chiralcel OD-H Column / hexane; isopropyl alcohol / Resolution of racemate 6.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 0 °C / Cooling with ice 7.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 7.2: 2 h / 20 °C 8.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 120 h 9.1: trifluoroacetic acid / chloroform / 2 h / 20 °C 10.1: borane-THF / tetrahydrofuran / 20 °C / Inert atmosphere 10.2: 4.25 h / 20 - 80 °C / Inert atmosphere | ||
Multi-step reaction with 9 steps 1.1: tris-(o-tolyl)phosphine; palladium diacetate; potassium phosphate / tetrahydrofuran / 22 h / Inert atmosphere; Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: pivaloyl chloride; N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 0.75 h / -78 - 0 °C / Inert atmosphere 3.2: -78 - 20 °C 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: dihydrogen peroxide; lithium hydroxide / tetrahydrofuran; water / 2 h / 4 °C / Cooling with ice 6.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 6.2: 2 h / 20 °C 7.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 120 h 8.1: trifluoroacetic acid / chloroform / 2 h / 20 °C 9.1: borane-THF / tetrahydrofuran / 20 °C / Inert atmosphere 9.2: 4.25 h / 20 - 80 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / 1,4-dioxane / 1.17 h / 90 °C / Inert atmosphere 2: lithium aluminium tetrahydride / tetrahydrofuran; 2-methyltetrahydrofuran / 2 h / 5 °C / Cooling with ice; Inert atmosphere 3: hydrogen; 5% rhodium-on-charcoal / ethanol / 60 h | ||
Multi-step reaction with 3 steps 1.1: R-(+)-1,1'-binaphthyl-2,2'-diphenylphosphine; chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium hydroxide / 1,4-dioxane / 1 h / 90 °C / Inert atmosphere 2.1: lithium aluminium tetrahydride / 2-methyltetrahydrofuran; tetrahydrofuran / 2 h / 5 °C / Inert atmosphere 2.2: 0.5 h 3.1: rhodium contaminated with carbon / ethanol / 60 h |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / 1,4-dioxane / 1.17 h / 90 °C / Inert atmosphere 2: palladium 10% on activated carbon; hydrogen / ethanol / 20 °C | ||
Multi-step reaction with 2 steps 1: R-(+)-1,1'-binaphthyl-2,2'-diphenylphosphine; chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium hydroxide / 1,4-dioxane / 1 h / 90 °C / Inert atmosphere 2: hydrogen; palladium 10% on activated carbon / ethanol / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / water; toluene / 5 h / 75 - 85 °C / Inert atmosphere; Large scale 2: hydrogen; rhodium contaminated with carbon / methanol / 26 h / 35 - 45 °C / 2250.23 Torr / Inert atmosphere; Large scale 3: silica thiol / methanol / 10 h / 60 - 70 °C / pH Ca. 1 / Large scale | ||
Multi-step reaction with 3 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / 1,4-dioxane / 1.17 h / 90 °C / Inert atmosphere 2: palladium 10% on activated carbon; hydrogen / ethanol / 20 °C 3: hydrogenchloride; water / 2-methyltetrahydrofuran / 2 h / 40 °C | ||
Multi-step reaction with 3 steps 1: R-(+)-1,1'-binaphthyl-2,2'-diphenylphosphine; chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium hydroxide / 1,4-dioxane / 1 h / 90 °C / Inert atmosphere 2: hydrogen; palladium 10% on activated carbon / ethanol / 20 °C 3: hydrogenchloride / 2-methyltetrahydrofuran / 2 h / 40 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / water; toluene / 5 h / 75 - 85 °C / Inert atmosphere; Large scale 2: hydrogen; rhodium contaminated with carbon / methanol / 26 h / 35 - 45 °C / 2250.23 Torr / Inert atmosphere; Large scale 3: silica thiol / methanol / 10 h / 60 - 70 °C / pH Ca. 1 / Large scale 4: hydrogenchloride / acetonitrile; water / 0.67 h / 35 °C / Large scale | ||
Multi-step reaction with 4 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / 1,4-dioxane / 1.17 h / 90 °C / Inert atmosphere 2: palladium 10% on activated carbon; hydrogen / ethanol / 20 °C 3: hydrogenchloride; water / 2-methyltetrahydrofuran / 2 h / 40 °C 4: hydrogenchloride / acetonitrile; water / 0.67 h / 35 °C / Large scale | ||
Multi-step reaction with 4 steps 1: R-(+)-1,1'-binaphthyl-2,2'-diphenylphosphine; chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium hydroxide / 1,4-dioxane / 1 h / 90 °C / Inert atmosphere 2: hydrogen; palladium 10% on activated carbon / ethanol / 20 °C 3: hydrogenchloride / 2-methyltetrahydrofuran / 2 h / 40 °C 4: hydrogenchloride / acetonitrile |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / water; toluene / 5 h / 75 - 85 °C / Inert atmosphere; Large scale 2: hydrogen; rhodium contaminated with carbon / methanol / 26 h / 35 - 45 °C / 2250.23 Torr / Inert atmosphere; Large scale |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: potassium hydroxide; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl / 1,4-dioxane / 1.17 h / 90 °C / Inert atmosphere 2: lithium aluminium tetrahydride / tetrahydrofuran; 2-methyltetrahydrofuran / 2 h / 5 °C / Cooling with ice; Inert atmosphere | ||
Multi-step reaction with 2 steps 1.1: R-(+)-1,1'-binaphthyl-2,2'-diphenylphosphine; chloro(1,5-cyclooctadiene)rhodium(I) dimer; potassium hydroxide / 1,4-dioxane / 1 h / 90 °C / Inert atmosphere 2.1: lithium aluminium tetrahydride / 2-methyltetrahydrofuran; tetrahydrofuran / 2 h / 5 °C / Inert atmosphere 2.2: 0.5 h |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1: 45% 2: 4% | With chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl; potassium hydroxide In 1,4-dioxane at 90℃; for 1.16667h; Inert atmosphere; | 13 tert-butyl 4-((R)-3-(2-(1,8-naphthyridin-2-yl)ethyl)pyrrolidin-1-yl)-3-(3-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl)butanoate A solution of (3-(3,5-dimethyl-lH-pyrazol-l-yl)phenyl)boronic acid (Intermediate 9) (44.7 g, 207 mmol) in KOH (3.8 M, 54.4 mL, 207 mmol) was treated with a solution of (/?,.r)-te/f-butyl 4-(3- (2-(l,8-naphthyridin-2-yl)ethyl)pyrrolidin-l-yl)but-2-enoate (Intermediate 12) (40 g, 103 mmol) in 1,4-dioxane (300 mL) and degassed several times using vacuum and nitrogen for 5 min. Chloro(l,5-cyclooctadiene)rhodium (I) dimer (2.55 g, 5.17 mmol) was added, followed by ( ?)-BINAP (6.44 g, 10.3 mmol) and the mixture was degassed for a further 5 min. The solution was heated at 90 °C for 60 min. After cooling, the reaction mixture was partitioned between DCM (250 mL) and water (200 mL). The aqueous phase was further extracted with DCM (200 mL) and the combined organic solutions were evaporated in vacuo. The residual oil (95 g) was dissolved in DCM and purified by chromatography on an aminopropyl cartridge KPNH (900 g) eluting with a gradient of 0- 50% ethyl acetate-cyclohexane over 10CV. The appropriate fractions were combined and evaporated in vacuo to give a brown oil (39 g). Analytical chiral HPLC on Chiralpak AD-H column (250 mm x4.6 mm) eluting isocratically with 20% EtOH (containing 0.2% isopropylamine) - heptane, flow rate = 1.0 mL/min, detecting at 215 nm indicated the oil was a mixture of two diastereoisomers : Peak 1 RT = 7.87 min, 90.4 %; Peak 2 RT = 9.78 min, 9.6 %. The mixture was separated by chiral preparative HPLC on a Chiralpak AD column (50 mm x 200 mm), eluting with 20% ethanol (containing 0.2% isopropylamine)-heptanes, flow rate=50 mL/min, detecting at 240 nm, collecting fractions of the major component with RT = 11-16 min. The combined fractions were evaporated under reduced pressure to give the major isomer of the title compound (isomer 1) (25.1 g, 45%) as a brown oil: LCMS (System A) RT= 1.25 min, ES+ve m/z 540 (M+H)+; Analytical chiral HPLC on Chiralpak AD-H column RT = 7.87 min, >99.5%; H NMR δ (CDCI3; 600 MHz) 9.07 (dd, 7=4.2, 2.0 Hz, 1H), 8.15 (dd, 7=8.0, 1.9 Hz, 1H), 8.08 (d, 7=8.4 Hz, 1H), 7.43 (dd, 7=8.0, 4.3 Hz, 1H), 7.37 (d, 7=8.3 Hz, 1H), 7.37 - 7.33 (m, 1H), 7.27 (d, 7=1.1 Hz, 1H), 7.27 - 7.25 (m, 1H), 7.21 (d, 7=7.7 Hz, 1H), 5.98 (s, 1H), 3.31 (d, 7=5.3 Hz, 1H), 3.10 - 2.95 (m, 2H), 2.85 (dd, 7=15.4, 5.7 Hz, 1H), 2.84 - 2.79 (m, 1H), 2.78 - 2.71 (m, 1H), 2.75 - 2.67 (m, 1H), 2.55 - 2.47 (m, 1H), 2.48 - 2.41 (m, 1H), 2.43 - 2.35 (m, 1H), 2.30 (s, 3H), 2.27 (s, 3H), 2.26 - 2.18 (m, 1H), 2.23 - 2.13 (m, 1H), 2.02 - 1.95 (m, 1H), 1.98 - 1.91 (m, 2H), 1.50 - 1.42 (m, 1H), 1.30 (s, 9H). The fractions containing the minor component (RT= 19-25 min) were combined and concentrated under reduced pressure to give the title compound isomer 2 (2.03g, 4%) as a brown oil: LCMS (System A) RT= 1.25 min, ES+ve m/z 540 (M+H)+; Analytical chiral HPLC on Chiralpak AD-H column RT=9.78 min, >99.5%. |
1: 45% 2: 4% | With chloro(1,5-cyclooctadiene)rhodium(I) dimer; R-(+)-1,1'-binaphthyl-2,2'-diphenylphosphine; potassium hydroxide In 1,4-dioxane at 90℃; for 1h; Inert atmosphere; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl; potassium hydroxide In water; toluene at 75 - 85℃; for 5h; Inert atmosphere; Large scale; Overall yield = 51%; Overall yield = 49.4 kg; Optical yield = 80 %de; | 48 methyl 4-((R)-3-(2-(1,8-naphthyridin-2-yl)ethyl)pyrrolidin-1-yl)-3-(3-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl)butanoate Stage 6. To a reactor was charged toluene (25 kg), (A^-methyl 4-(3-(2-(l,8-naphthyridin-2- yl)ethyl)pyrrolidin-l-yl)but-2-enoate (Intermediate 47 in toluene (42.15 kg, 13.4% assay, 5.6 kg (lwt) active), 17%w/w aq. KOH solution (10 kg), (3-(3,5-dimethyl-l pyrazol-l-yl)phenyl)boronic acid (Intermediate 9) (8.4 kg), chloro-(l,5-cyclooctadiene)rhodium (I) dimer (0.433 kg) and (R)- (+)-2,2'-bis(diphenylphosphino)-l,l'-binaphthyl (1.3 kg). The reactor was purged with nitrogen, heated to 75-85°C and stirred under nitrogen for about 5 h. The mixture was distilled under reduced pressure to l-3vol and cooled to 20-30°C. The mixture was treated with DCM (166 kg) and water (57 kg), stirred and the aqueous phase discarded. The organic phase was acidified with 0.5N aq. HCI solution (141 kg), separated and the aqueous phase washed twice with DCM (45 and 43 kg). Ethyl acetate (57 kg) was added into the aqueous phase and the mixture neutralised to pH7-8 with IN aq. NaOH (56 kg). The organic layer was collected and the aqueous layer was extracted twice with ethyl acetate (2x28 kg). The combined EtOAc extracts were washed with 25% aq. NaCI (32 kg) and distilled under reduced pressure to l-2vol. The mixture was diluted with MeOH (25 kg) and distilled under reduced pressure to l-2vol. The residue was diluted with MeOH (29 kg) to give a solution of the title compounds MeOH (~9: ldr, 49.4 kg, 9.0%assay, 51%th yield). HPLC RT = 11.68 min, 90.9%, Column: 150 mm χ 4.6 mm ID, 3.5 μηη Agilent Zorbax SB-C8 Flow Rate: 1.0 mL/min. Temp.: 40°C Detection wavelength: 210 nm Solvents: A: 0.05% v/v solution of trifluoroacetic acid in water B: 0.05% v/v solution of trifluoroacetic acid in acetonitrile Gradient: Time (min) A% B% 0.0 95 5 15.0 30 70 18.0 5 95 20.0 5 95 20.1 95 5 Chiral HPLC RT = 10.27 min, 90.0%, Column: 250 mm χ 4.6 mm ID, 5 μηη CHIRALPAK AD-H Flow Rate: 1.0 mL/min. Temp.: 40°C Detection wavelength: 248 nm Solvents: A: 0.1% v/v solution of diethyl amine in n-hexane B: 0.1% v/v solution of diethylamine in ethanol Gradient: Time (min) A% B% 0.01 80 20 40 80 20 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 10 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: hydrogenchloride / water / 2 h / Reflux 4.1: lithium hexamethyldisilazane / tetrahydrofuran / 0.08 h / -78 °C 4.2: 2.5 h / -78 - 20 °C 5.1: HPLC on a Chiralcel OD-Hcolumn / Resolution of racemate 6.1: lithium hydroxide; dihydrogen peroxide / water; tetrahydrofuran / 16 h / 4 °C 7.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 7.2: 2 h / 20 °C 8.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 96 h 9.1: trifluoroacetic acid / chloroform / 2 h / 20 °C 10.1: borane-THF / tetrahydrofuran / 18 h / 20 °C / Inert atmosphere 10.2: 20 °C / Inert atmosphere | ||
Multi-step reaction with 9 steps 1.1: dichlorobis(tri-O-tolylphosphine)palladium; potassium phosphate / tetrahydrofuran / 16 h / Inert atmosphere; Reflux 1.2: 6 h / Reflux 2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C 3.1: N-ethyl-N,N-diisopropylamine; pivaloyl chloride / tetrahydrofuran / 0.75 h / 0 °C / Inert atmosphere 3.2: 0.5 h / -78 °C / Inert atmosphere 4.1: lithium aluminium tetrahydride / tetrahydrofuran / 1 h / -78 °C 4.2: 48 h / -78 - 20 °C 5.1: lithium hydroxide; dihydrogen peroxide / tetrahydrofuran / 2 h / 4 °C 6.1: 1-hydroxybenzotriazol-hydrate; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.17 h 6.2: 2 h / 20 °C 7.1: hydrogen; 5% rhodium-on-charcoal / ethanol / 96 h 8.1: trifluoroacetic acid / chloroform / 2 h / 20 °C 9.1: borane-THF / tetrahydrofuran / 18 h / 20 °C / Inert atmosphere 9.2: 20 °C / Inert atmosphere |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-2,2'-bis(diphenylphosphanyl)-1,1'-binaphthyl; potassium hydroxide In 1,4-dioxane; water at 90℃; Inert atmosphere; diastereoselective reaction; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 3 steps 1: copper(l) iodide; caesium carbonate; 4,4',4-tri-tert-butyl-2,2':6',2-terpyridine / toluene / 18 h / 100 °C 2: potassium carbonate; water / methanol / 5 h / 20 °C 3: acetonitrile / 0.17 h / 50 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 2 steps 1: copper(l) iodide; caesium carbonate; 4,4',4-tri-tert-butyl-2,2':6',2-terpyridine / toluene / 18 h / 100 °C 2: potassium carbonate; water / methanol / 5 h / 20 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Multi-step reaction with 4 steps 1: copper(l) iodide; caesium carbonate; 4,4',4-tri-tert-butyl-2,2':6',2-terpyridine / toluene / 18 h / 100 °C 2: potassium carbonate; water / methanol / 5 h / 20 °C 3: acetonitrile / 0.17 h / 50 °C 4: (5,10,15,20-tetramesitylporphyrinato)manganese(III) chloride; tetraethylammonium (F<SUP>18</SUP>)-flouride / N,N-dimethyl-formamide / 0.33 h / 50 °C |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With copper(l) iodide; caesium carbonate; 4,4',4-tri-tert-butyl-2,2':6',2-terpyridine In toluene at 100℃; for 18h; |
[ ]
[3-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl]boronic acid
Similarity: 1.00
[ 1025495-85-5 ]
(4-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.99
[ 1025495-85-5 ]
(4-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.99
[ N/A ]
[4-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl]boronic acid
Similarity: 0.99
[ ]
(2-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.96
[ 1025495-85-5 ]
(4-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.99
[ 1287753-41-6 ]
(2-(3,5-Dimethyl-1H-pyrazol-1-yl)-4-methylphenyl)boronic acid
Similarity: 0.93
[ 1287753-38-1 ]
(4-Chloro-2-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.88
[ 922730-47-0 ]
(2-(3,5-Diphenyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.86
[ 1313760-78-9 ]
(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)boronic acid
Similarity: 0.84
[ 1025495-85-5 ]
(4-(3,5-Dimethyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.99
[ 1287753-41-6 ]
(2-(3,5-Dimethyl-1H-pyrazol-1-yl)-4-methylphenyl)boronic acid
Similarity: 0.93
[ 1287753-38-1 ]
(4-Chloro-2-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.88
[ 922730-47-0 ]
(2-(3,5-Diphenyl-1H-pyrazol-1-yl)phenyl)boronic acid
Similarity: 0.86
[ 1313760-78-9 ]
(3,5-Dimethyl-1-phenyl-1H-pyrazol-4-yl)boronic acid
Similarity: 0.84