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Type | HazMat fee for 500 gram (Estimated) |
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Structure of 72235-52-0
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The BI-3802 was designed by Boehringer Ingelheim and could be obtained free of charge through the Boehringer Ingelheim open innovation portal opnMe.com, associated with its negative control.
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CAS No. : | 72235-52-0 |
Formula : | C7H7F2N |
M.W : | 143.13 |
SMILES Code : | NCC1=CC=C(F)C=C1F |
MDL No. : | MFCD00010142 |
InChI Key : | QDZZDVQGBKTLHV-UHFFFAOYSA-N |
Pubchem ID : | 2733244 |
GHS Pictogram: |
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Signal Word: | Danger |
Hazard Statements: | H227-H314 |
Precautionary Statements: | P280-P305+P351+P338-P310 |
Class: | 8 |
UN#: | 2735 |
Packing Group: | Ⅲ |
Num. heavy atoms | 10 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.14 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 34.03 |
TPSA ? Topological Polar Surface Area: Calculated from |
26.02 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.75 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
0.98 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.11 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
2.41 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.28 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.91 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.72 |
Solubility | 2.71 mg/ml ; 0.0189 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-1.11 |
Solubility | 11.0 mg/ml ; 0.0768 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.98 |
Solubility | 0.151 mg/ml ; 0.00105 mol/l |
Class? Solubility class: Log S scale |
Soluble |
GI absorption? Gatrointestinal absorption: according to the white of the BOILED-Egg |
High |
BBB permeant? BBB permeation: according to the yolk of the BOILED-Egg |
Yes |
P-gp substrate? P-glycoprotein substrate: SVM model built on 1033 molecules (training set) |
No |
CYP1A2 inhibitor? Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set) |
No |
CYP2C19 inhibitor? Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set) |
No |
CYP2C9 inhibitor? Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set) |
No |
CYP2D6 inhibitor? Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set) |
No |
CYP3A4 inhibitor? Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set) |
No |
Log Kp (skin permeation)? Skin permeation: QSPR model implemented from |
-6.48 cm/s |
Lipinski? Lipinski (Pfizer) filter: implemented from |
0.0 |
Ghose? Ghose filter: implemented from |
None |
Veber? Veber (GSK) filter: implemented from |
0.0 |
Egan? Egan (Pharmacia) filter: implemented from |
0.0 |
Muegge? Muegge (Bayer) filter: implemented from |
2.0 |
Bioavailability Score? Abbott Bioavailability Score: Probability of F > 10% in rat |
0.55 |
PAINS? Pan Assay Interference Structures: implemented from |
0.0 alert |
Brenk? Structural Alert: implemented from |
0.0 alert: heavy_metal |
Leadlikeness? Leadlikeness: implemented from |
No; 1 violation:MW<1.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
1.1 |
* 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 |
---|---|---|
C. (3S,llaR)-N-[(2,4-Difluorophenyl)methyl]-3-methyI-6-(methyloxy)-5,7-dioxo- 2,3,5,7,11,1 la-hexahydro [1,3] oxazolo [3,2-a]pyrido [l,2- | ||
With 4-methyl-morpholine; chloroformic acid ethyl ester; In dichloromethane; at 0℃;Flow reactor; | A solution of l-(2,2-dimethoxyethyl)-5-methoxy-6-(methoxycarbonyl)-4-oxo-l,4- dihydropyridine-3 -carboxylic acid (V) in acetic acid / Dimethyl carbonate (25. Og, 0.079 moles) and methane sulfonic acid (3.79 g, 0.039 moles) were introduced in micro channel reactor. After residence time of 9 mins at l30C, the reaction mixture containing 5-methoxy-6-(methoxycarbonyl)-4-oxo-l-(2- oxoethyl)-l,4-dihydropyridine-3 -carboxylic acid (IVa) was further introduced into a second Tube Flow reactor and cyclised with solution of (S)-2-amino-propan-l- ol in (8.35g,0. l 1 moles) in Dimethyl carbonate at l00C at a residence time of 6 mins followed by quenching with Aq HC1 solution. The organic layer containing (3 S, 1 laR)-6-methoxy-3-methyl-5,7-dioxo-2,3,5,7,l 1,1 la-hexahydrooxazolo-[3,2- a] pyrido[ 1 ,2-ri/pyrazine -8-carboxylic acid (III b) was separated and introduced into a third Tube Flow Reactor with a solution of N-Methyl Morpholine (12. Og, 0.119 moles) and a solution of 2,4-diflurobenzylamine (l5.8g,0. l2moles) in MDC solvent and reacted in presence of Ethyl chloroformate (l2.06g,0. l l moles) at 0C . After a residence time of 2 mins yields (3S, l laR)-N-(2,4-Difluorobenzyl)- 6-methoxy-3-methyl-5,7-dioxo-2,3,5,7, l 1,1 la-hexahydrooxazolo-[3,2- a]pyrido[l,2- (0306) HPLC purity : 98.0% (0307) Yield : 85.0%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In acetonitrile; at 80℃; for 5h; | Compound 6 (0.6 g, 1.95 mmol),1-ethyl-(3-dimethylaminopropyl)carbonic acid diimine hydrochloride (EDCI, 0.51 g, 2.65 mmol),2,4-difluorobenzylamine (0.29 ml, 2.44 mmol) in acetonitrile (10 ml) was heated to 80 C for 5 h.The reaction was quenched by the addition of 6 ml of water, the lower layer was a viscous yellow oily liquid, and the upper layer was suspended.The solvent of acetonitrile was evaporated under reduced pressure and suction filtered to give a crude material (yel.The crude product was recrystallized from AcOEt/petroleum ether = 4/1 solvent 15 ml to give compound 7 0.66 g(Rf = 0.25, TLC developer: AcOEt),The yield was 78%. |
85 g | (3S,11aR)-3-methyl-6-(methyloxy)-5,7-dioxo-2,3,5,7,11,11a- hexahydro[1,3]oxazolo [3,2-a]pyrido[1,2-d]pyrazine-8-carboxylic acid (100 gm) and carbonyldimidazole (78.89 gm) were suspended in acetonitrile (1000 mL). The mixture was heated to a temperature of 75C and stirred for 1 hour. The resulting solution was cooled to a temperature of 20C and treated with 2,4- difluorobenzyl amine solution (55.2 gm was dissolved in 200 mL of acetonitrile). The reaction mixture was maintained for 2 hours, concentrated and the compound was extracted with ethyl acetate (1000 mL). Isopropyl alcohol (500 mL) was added at a temperature of 40C, stirred the reaction mass for 30 minutes at a temperature of 50C and the cooled the reaction mass to 25C. The reaction mixture was maintained for 8 hours at the same temperature. The product was collected by filtration and dried under vacuum (85 gm). | |
With 4-methyl-morpholine; chloroformic acid ethyl ester; In dichloromethane; at 0℃;Flow reactor; Large scale; | A solution of l-(2,2-dimethoxyethyl)-5-methoxy-6-(methoxycarbonyl)-4-oxo-l,4- dihydropyridine-3 -carboxylic acid (V) in acetic acid / Dimethyl carbonate ( 5.0Kg, 15.8 moles) and methane sulfonic acid (533.0 g, 5.6 moles) were introduced in micro channel reactor. After residence time of 9 mins at l30C gives 5-methoxy- 6-(methoxycarbonyl)-4-oxo- 1 -(2-oxoethyl)- 1 ,4-dihydropyridine-3 -carboxylic acid (IVa). The reaction mixture was further introduced in a Tube Flow reactor and cyclised with solution of R-3 amino butanol ( 1.97 kg, 22.2 moles) in Dimethyl carbonate at l00C at a residence time of 5.15 mins followed by quenching with Aq HC1 solution. The organic layer containing (4S,l2aR)-7-methoxy-4-methyl- 6,8-dioxo-3,4,6,8,l2,l2a-hexahydro-2H-pyrido[r,2':4,5]pyrazino[2,l- b][l,3]oxazine-9-carboxylic acid (III) was separated and introduced in a Tube Flow Reactor with a solution of N-Methyl Morpholine (2.25 Kg, 22.22 moles) and a solution of 2,4-diflurobenzylamine(3.l8 kg, 22.2 moles) in MDC solvent and reacted in presence of Ethyl chloroformate (1.73 Kg, 20.63 moles) at 0C. After a residence time of l. l5mins yields (4S,l2aR)-N-(2,4-Difluorobenzyl)-7-methoxy- 4-methyl-6,8-dioxo-3,4,6,8,l2,l2a-hexahydro-2H-pyrido[r,2':4,5]pyrazino[2,l- b][l,3]oxazine-9-carboxamide (Ila) which was isolated in IPA after acid base workup. (0250) HPLC purity: 99.0% (0251) Yield: 80.0%. |
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