Structure of 6134-53-8
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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. : | 6134-53-8 |
Formula : | C9H9Br |
M.W : | 197.07 |
SMILES Code : | BrC1=CC=CC2=C1CCC2 |
MDL No. : | MFCD22059711 |
Boiling Point : | No data available |
InChI Key : | JCQMGSFTMQWFPE-UHFFFAOYSA-N |
Pubchem ID : | 11745586 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302 |
Precautionary Statements: | P280-P305+P351+P338 |
Num. heavy atoms | 10 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.33 |
Num. rotatable bonds | 0 |
Num. H-bond acceptors | 0.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 46.77 |
TPSA ? Topological Polar Surface Area: Calculated from |
0.0 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.44 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
3.45 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.94 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
3.59 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
3.81 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
3.25 |
Log S (ESOL):? ESOL: Topological method implemented from |
-3.68 |
Solubility | 0.0412 mg/ml ; 0.000209 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-3.13 |
Solubility | 0.146 mg/ml ; 0.000739 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-4.08 |
Solubility | 0.0163 mg/ml ; 0.0000826 mol/l |
Class? Solubility class: Log S scale |
Moderately soluble |
GI absorption? Gatrointestinal absorption: according to the white of the BOILED-Egg |
Low |
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) |
Yes |
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) |
Yes |
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 |
-5.05 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) |
1.91 |
* 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 |
---|---|---|
With benzyltrimethylazanium tribroman-2-uide; zinc dibromide; In acetic acid; at 20℃; for 4h; | Reference Synthetic Example 51-[5-(2,3-Dihydro-1H-inden-5-yl)-4-hydroxythiophen-3-yl]ethanone(1) Synthesis of (2,3-dihydro-1H-inden-5-yl)boronic acid Synthesis was carried out by the following synthesis methods 3 and 4.Synthesis Method 35.91 g (0.05 mol) of 2,3-dihydro-1H-indene was stirred with 60 ml of acetic acid at room temperature, and to the resulting solution, 12.3 g (0.055 mol) of zinc (II) bromide was added and then 19.5 g (0.05 mol) of benzyltrimethylammonium tribromide was added. After the addition, the reaction solution was stirred at room temperature for 4 hours to complete the reaction. After completion of the reaction, the reaction solution was extracted by adding ethyl acetate and saturated aqueous sodium chloride. The ethyl acetate layer was neutralized and washed with saturated aqueous sodium hydrogen carbonate, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluent: n-hexane) to isolate 5.11 g of an oil (yield: 51.9%). The oil turned out to be a mixture of about 70 to 80% of the 5-bromide and about 30 to 20% of the 4-bromide upon 1H-NMR analysis. 8.3 g (0.0421 mol) of 5-bromo-2,3-dihydro-1H-indene and 4-bromo-2,3-dihydro-1H-indene was stirred with 40 ml of dry tetrahydrofuran with cooling to -78 C., and 32.0 ml of 1.6 M n-butyllithium in n-hexane was added dropwise. After the dropwise addition, the reaction solution was stirred at -78 C. for 15 minutes, and 8.75 g (0.0842 mol) of trimethyl borate was added. After the dropwise addition, the reaction solution was stirred for 3 hours while the temperature was allowed to elevate to -20 C. Then, 50 ml of 1 M hydrochloric acid was added dropwise, and the reaction solution was stirred for 2 hours while the temperature was allowed to elevate to room temperature. The reaction solution was extracted by adding 300 ml of ethyl acetate and 250 ml of saturated aqueous sodium chloride. The ethyl acetate layer was washed with saturated aqueous sodium chloride and dried over anhydrous sodium sulfate, and the ethyl acetate was evaporated under reduced pressure. The residual crystals were stirred with 20 ml of ethyl acetate and dispersed by adding 150 ml of n-hexane. The crystals were collected by filtration, washed with n-hexane and dried to obtain 2.5 g of the desired product (yield: 36.7%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
85% | With triethylsilane; trifluoroacetic acid; In tetrahydrofuran; dichloromethane; at -20 - 20℃; for 2h; | To a solution of 4-bromo-2,3-dihydro-lH-inden-l-one (2 g, 10 mmol) in DCM (lOmL) was added TFA, then cooled to - 20C. Et3SiH (15 ml_, IN in THF, 15 mmol) was added drop wise. After stirring for 2h at RT the reaction mixture was poured into NH4CI aqueous and extracted with DCM (10 ml_*2), washed with brine (10 ml_*2), dried by MgS04, concentrated, purified by FC to afford compound (1.7 g, yield : 85%); m/z (ES+) : 197 [M + H] + |
80% | With triethylsilane; trifluorormethanesulfonic acid; In dichloromethane; at 0 - 20℃; for 16h; | To a solution of 4-bromoindan-1-one (200 mg, 947 umol) in dichloromethane (10 mL) was added a solution of trifluoromethanesulfonic acid (426 mg, 2.84 mmol) in dichloromethane (500 uL) and the reaction mixture was cooled to 0 C. Then triethylsilane (220 mg, 1.90 mmol) in dichloromethane (500 uL) was added dropwise to the reaction mixture and the mixture was stirred at 0 C for 0.5 hr. TLC detected most starting material remained. Then another batch of trifluoromethanesulfonic acid (426 mg, 2.84 mmol) and triethylsilane (220 mg, 1.90 mmol) was added in turn and the reaction mixture was stirred at 20 C for 15.5 hrs. On completion, the reaction mixture was diluted with 15 mL DCM and washed with saturated sodium bicarbonate until pH = 7. The organic layer was dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by silica gel chromatography (petroleum ether) to give the title compound (1.00 g, 80% yield) as colorless oil.1H NMR (400MHz, CDCl3) delta = 7.31 (d, J = 7.6 Hz, 1H), 7.16 (d, J = 7.6 Hz, 1H), 7.02 (dd, J = 7.6, 7.6 Hz, 1H), 3.04 (t, J = 7.2 Hz, 2H), 2.98 (t, J = 7.2 Hz, 2H), 2.11 (m, 2H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With aluminum oxide; bromine; | Bromine (6.40 g, 40.0 mmol) adsorbed on alumina (30 g, neutral, Brockmann grade 1) was added to indane (4.70 g, 40.0 mmol) also adsorbed on alumina (30 g, neutral, Brockmann grade 1). The mixture was stirred until the color of the bromine disappeared (tlc showed completion). The reaction mixture was filtered through silica gel (100 g eluting with CH2Cl2) and the filtrate was concentrated in vacuo to provide the crude bromoindane (7.40 g) as a brown oil. The crude material was purified by flash chromatography (200 g SiO2, hexanes) to give a mixture of 2 mono-brominated indanes and a dibrominated indane (5.95 g, 68%) as yellow oil. | |
Preparation of the Mixture of Boronic Acids. (According to Ranu, Synth. Comm. 1095 (1992) Bromine (6.40 g, 40.0 mmol) adsorbed on alumina (30 g, neutral, Brockmann grade 1) was added to indane (4.70 g, 40.0 mmol) also adsorbed on alumina (30 g, neutral, Brockmann grade 1). The mixture was stirred until the color of the bromine disappeared (tlc showed completion). The reaction mixture was filtered through silica gel (100 g eluting with CH2Cl2) and the filtrate was concentrated in vacuo to provide the crude bromoindane (7.40 g) as a brown oil. The crude material was purified by flash chromatography (200 g SiO2, hexanes) to give a mixture of 2 mono-brominated indanes and a dibrominated indane (5.95 g, 68%) as yellow oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
An oven-dried flask was charged with the mixture of bromoindanes (340 mg, 1.73 mmol) and dry THF (2 mL) under argon. The solution was cooled to -78 C. and butyllithium (1.6 M in hexanes, 1.30 mL) was added drop-wise. The reaction mixture was stirred for 15 min at -78 C. and trimethyl borate (385 muL, 3.46 mmol) was added drop-wise. The reaction solution was left to warm to -20 C. over a period of 2.5 h and was then quenched with 1M aqueous HCl (2 mL). The mixture was left to warm to room temperature, was diluted with MTBE (20 mL) and the layers were separated. The organic layer was washed with H2O (5 mL) and brine 5 mL), dried (Na2SO4) and concentrated to give the crude boronic acid (232 mg). Flash chromatography (20 g SiO2, AcOEt/heptane 1:4?1:2) provided a mixture of 4- and 5-indane boronic acid (123 mg, 44%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
An oven-dried flask was charged with the mixture of bromoindanes (340 mg, 1.73 mmol) and dry THF (2 mL) under argon. The solution was cooled to -78 C. and butyllithium (1.6 M in hexanes, 1.30 mL) was added drop-wise. The reaction mixture was stirred for 15 min at -78 C. and trimethyl borate (385 muL, 3.46 mmol) was added drop-wise. The reaction solution was left to warm to -20 C. over a period of 2.5 h and was then quenched with 1M aqueous HCl (2 mL). The mixture was left to warm to room temperature, was diluted with MTBE (20 mL) and the layers were separated. The organic layer was washed with H2O (5 mL) and brine 5 mL), dried (Na2SO4) and concentrated to give the crude boronic acid (232 mg). Flash chromatography (20 g SiO2, AcOEt/heptane 1:4?1:2) provided a mixture of 4- and 5-indane boronic acid (123 mg, 44%). |
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