Structure of 923591-51-9
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CAS No. : | 923591-51-9 |
Formula : | C9H11BrClN |
M.W : | 248.55 |
SMILES Code : | Cl.BrC1=CC=CC2=C1CCNC2 |
MDL No. : | MFCD05861550 |
InChI Key : | SBMVDLGSHBOIOK-UHFFFAOYSA-N |
Pubchem ID : | 45074003 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 12 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.33 |
Num. rotatable bonds | 0 |
Num. H-bond acceptors | 1.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 60.45 |
TPSA ? Topological Polar Surface Area: Calculated from |
12.03 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
0.0 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
2.82 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.36 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
2.8 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
3.12 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.22 |
Log S (ESOL):? ESOL: Topological method implemented from |
-3.53 |
Solubility | 0.0738 mg/ml ; 0.000297 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.73 |
Solubility | 0.463 mg/ml ; 0.00186 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-4.14 |
Solubility | 0.0181 mg/ml ; 0.0000728 mol/l |
Class? Solubility class: Log S scale |
Moderately 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) |
Yes |
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) |
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 |
-5.81 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 |
1.0 |
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) |
1.73 |
* 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 |
---|---|---|
91% | 5-Bromo-2-(methylsulfonyl)-l,2,3,4-tetrahvdroisoquinoline5-Bromo-l,2,3,4-tetrahydroisoquinoline hydrochloride was suspended in diethyl ether and washed with IN NaOH, dried with Na2SO4 and concentrated to give the free amine as an oil. The amine (405 mg, 1.9 mmol) and DIPEA (0.36 mL, 2.1 mmol) were dissolved in DCM (2 mL) and cooled to 0 0C. Methanesulphonylchloride (0.60 mL, 5.0 mmol) was added dropwise at 0 0C. The reaction mixture was allowed to reach RT and stirred for 1 h. <n="49"/>The reaction was quenched with water and extracted with DCM. The combined organic layers were washed with brine, dried (Na2SO4) and concentrated to give the product as a white solid (0.5 g, 91%).1H NMR (300 MHz, CDCl3): delta 7.55 - 7.44 (m, IH), 7.16 - 7.00 (m, 2H), 4.46 (s, 2H), 3.60 (t, J = 6.1 Hz, 2H), 2.99 (t, J = 6.1 Hz, 2H), 2.86 (s, 3H); APCI-MS m/z: 290/292 1:1 [MH+]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | 5-Bromo-3.4-dihvdroisoquinoline-2(lH)-carbaldehyde5-Bromo-l,2,3,4-tetrahydroisoquinoline hydrochloride was suspended in diethyl ether and washed with IN NaOH, dried with Na2SO4 and concentrated to give the free amine as an oil. The amine (405 mg, 1.9 mmol) was mixed with ethyl formate (1 mL) and stirred at 80 0C for 2h. The mixture was concentrated to give the product as a white solid (0.45 g, 100%). <n="48"/>1H NMR (300 MHz, CDCl3): delta 8.26 and 8.21 (s, IH), 7.52 - 7.42 (m, IH), 7.14 - 7.04 (m, 2H), 4.70 and 4.54 (s, 2H), 3.83 and 3.68 (t, J= 6.2 Hz, 2H), 2.98 - 2.85 (m, 2H); APCI-MS m/z: 240/242 1:1 [MH+]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydroxide; water; In diethyl ether; | 2-Acetyl-5-bromo-l,2,3,4-tetrahydroisoquinoline5-Bromo-l,2,3,4-tetrahydroisoquinoline hydrochloride (2.0 g, 8.0 mmol) was taken up in diethyl ether (20 mL) and washed with NaOH (aq, IN), dried (Na2SO4) and concentrated to give the free amine (1.67 g) that was dissolved in pyridine (15 mL) and cooled to 0 0C. Acetic anhydride (0.82 mL, 8.7 mmol) was added dropwise and the reaction was stirred at RT overnight. Azeotropic evaporation with toluene several times gave the product as a white solid (1.9 g, 94%).1H NMR (SOO MHz, DMSO-d6): delta 7.53 - 7.46 (m, IH), 7.27 - 7.11 (m, 2H), 4.66 and 4.61 rotamers 4:6 (s, 2H), 3.73 - 3.66 (m, 2H), 2.83 and 2.71 rotamers 6:4 (t, J= 6.1 Hz, 2H), 2.09 and 2.07 rotamers 6:4 (s, 3H); APCI-MS m/z: 254/256 1:1 [MH+]. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
46.7% | Example 62 : 5 -(3 ',4'-difluoro-3 -methoxy- [1, 1 '-biphenyl] -4-yl)-N-( 1 ,3 ,4-thiadiazol-2-yl)-3 ,4- dihydroisoquinoline-2( 1 H)-sulfonamide Step 1 : 5-bromo-N-(l,3,4-thiadiazol-2-yl)-3,4-dihydroisoquinoline-2(lH)-sulfonamide A solution of l, l"-sulfonyldiimidazole (0.588 g, 2.97 mmol) and l,3,4-thiadiazol-2- amine (0.300 g, 2.97 mmol) in 6 mL of DMF was cooled to 0C. NaH (60% in mineral oil) (0.238 g, 9.91 mmol) was added. After 30 minutes, the reaction mixture was heated to 80C for one hour. 5-bromo-l,2,3,4-tetrahydroisoquinoline hydrochloride (0.737 g, 2.97 mmol) and n,n-diisopropylethylamine (2.59 ml, 14.83 mmol) were added, and the reaction mixture was heated to 110C for an additional 3 hours. The reaction mixture was then diluted with DCM and washed with IN citric acid solution. The organics were dried over MgSC^ and concentrated. Purification of the crude residue by reverse phase column chromatography [Redisep Gold C18, 10-100% (0.1%NH4OH in MeOH)/(0.1%NH4OH in water)] gave 5- bromo-N-(l,3,4-thiadiazol-2-yl)-3,4-dihydroisoquinoline-2(lH)-sulfonamide (0.520 g, 1.386 mmol, 46.7 % yield). (M+H)+= 375.0. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
Intermediate AA: 5-Bromo-N-(l,2,4-thiadiazol-5-yl)-3,4-dihydroisoquinoline-2(lH)- sulfonamide To a 50 mL flask containing sodium l,2,4-thiadiazol-5-ylsulfamate (Intermediate A, 96 mg, 0.472 mmol) and 10 mL of DCM was added PC15 (Aldrich, St. Louis, MO, 245 mg, 1.179 mmol). The resutling slurry was heated at 50 C for 1.5 hours. LCMS showed conversion to the methyl sulfamate (following quench into methanol). The reaction was cooled to rt and was quenched with the addition of 5 drops of brine. The resulting slurry was stirred vigorously for 5 minutes before being filtered through a plug of diatomaceous earth, washing well with DCM. The mixture was concentrated under reduced pressure. The derived oil was taken up in 1 mL of DCM and was added to a solution of 5-bromo-l,2,3,4-tetrahydroisoquinoline hydrochloride (ASW Medchem, 50 mg, 0.236 mmol) and TEA (164 mu, 1.179 mmol) in 2 mL of DCM at 0 C. Another 0.164 mL of TEA was added and the reaction allowed to warm to room temeprature where it was maintained for 2 hours. LCMS showed clean conversion to sulfonamide. The reaction was allowed to stir overnight before being diluted with saturated sodium bicarbonate (10 mL) and poured into a separatory funnel containing methylenechloride (10 mL). The layers were separated and the aqueous layer was extracted with methylenechloride (2 x 25 mL). The combined organic layers were washed with brine, dried over sodium sulfate, filtered and concentrated under a vacuum to provide a yellow oil that was purified by silica gel chromatography (Redi-Sep pre-packed silica gel column (12 g), 0-10% methanol in methylenechloride) to provide 5-bromo-N-(l,2,4-thiadiazol-5-yl)-3,4- dihydroisoquinoline-2(lH)-sulfonamide as an off white solid. [M+H]+ = 375.0 XH NMR (400 MHz, Acetone)8 ppm 8.28 (s, 1H), 7.96 (s, 1H), 7.45 - 7.50 (m, 1H), 7.09 - 7.20 (m, 2H), 4.32 (s, 2H), 3.48 (t, J = 6.1 Hz, 2H), 2.86 - 2.92 (m, 2H) |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
3.25 g | Intermediate I: 5-Bromo-N-(5-fluorothiazol-2-yl)-3,4-dihydroisoquinoline-2(lH)- sulfonamide A solution of 5-fluorothiazol-2-amine hydrochloride (Milestone Pharmatech, Brunswick, NJ, 6.22 g, 40.2 mmol) and IH-imidazole (10.96 g, 161 mmol) in 200 mL DCM was cooled to -78 C and was treated with sulfuryl chloride (3.27 ml, 40.2 mmol). After stirring for 10 minutes, the reaction mixture was placed into a 0 C bath and was allowed to stir for an additional hour. To this mixture was added 30 mL of heptane and the solvent was decanted. The remaining solid was treated with 5-bromo- 1,2,3,4-tetrahydroisoquinoline hydrochloride (ASW Medchem, Brunswick, NJ, 5.00 g, 20.12 mmol) then treated sequentially with 100 mL THF and DIPEA (42.2 ml, 241 mmol). The reaction mixture was heated to reflux for one hour before being cooled and poured into IN citric acid. The desired product was extracted with ethyl acetate. The organics were concentrated and the resulting residue was purified directly by silioca gel column chromatography (0 to 100% EtO Ac/heptane, 2% MeOH) yielding 5-bromo-N-(5-fluorothiazol-2-yl)-3,4-dihydroisoquinoline-2(lH)-sulfonamide (3.25 g, 8.29 mmol). [M+H]+ = 393.9 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium phosphate; bis(di-tert-?butyl(4-?dimethylaminophenyl)?phosphine)?dichloropalladium(II); In 1,4-dioxane; water; at 90℃; for 0.5h;Inert atmosphere; Microwave irradiation; | Intermediate O: 5-(2-(l-Methyl-lH-pyrazol-5-yl)-4-(trifluoromethyl)phenyl)-l,2,3,4- tetrahydroisoquinoline A vial was charged with 5-bromo-l,2,3,4-tetrahydroisoquinoline hydrochloride (ASW Medchem, Brunswick, NJ, 400.42 mg, 1.367 mmol), (2-(l- methyl-lH-pyrazol-5-yl)-4-(trifluoromethyl)phenyl)boronic acid (Intermediate B, 443 mg, 1.640 mmol), potassium phosphate (1 160 mg, 5.47 mmol), and Pd(AmPhos)2Ci2 (Sigma- Aldrich, St. Louis, MO, 48.4 mg, 0.068 mmol). The vial was flushed with Ar (g), then dioxane (2928 mu) and water (976 mu) were added in sequence. The mixture was heated in a microwave reactor for 30 min at 90 C. After cooling to room temperature, the mixture was diluted with EtOAc, washed with water (and a small amount of brine to break up emulsions, 2x), washed with brine, dried over sodium sulfate, filtered, and concentrated. The residue was taken up in MeOH, then loaded onto a 10 g SCX-2 ion exchange column. The column was eluted with MeOH, then with 2M ammonia in MeOH. The basic filtrate was concentrated, and the residue was chromatographed on a 40 g silica gel column with 0 to 10% MeOH/DCM to provide 5-(2-(l -methyl- lH-pyrazol-5-yl)-4-(trifluoromethyl)phenyl)-l ,2,3,4- tetrahydroisoquinoline as a pale yellow solid. [M+H]+ = 358.1. XH NMR (400 MHz, DMSO-d6) delta ppm = 7.91 - 7.80 (m, 2 H), 7.56 (d, J= 8.0 Hz, 1 H), 7.28 (d, J= 2.0 Hz, 1 H), 7.09 - 6.95 (m, 2 H), 6.84 (dd, J= 1.3, 7.4 Hz, 1 H), 5.96 (d, J= 1.9 Hz, 1 H), 3.85 (s, 2 H), 3.52 (br. s., 3 H), 2.93 - 2.84 (m, 1 H), 2.79 - 2.67 (m, 1 H), 2.48 - 2.39 (m, 1 H), 2.09 (td, J= 5.3, 16.7 Hz, 1 H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1.092 g | Step 1 : 5-Bromo-N-(thiazol-2-yl)-3,4-dihydroisoquinoline-2(lH)-sulfonamide A solution of imidazole (1.530 g, 22.47 mmol) and thiazol-2 -amine (0.750 g, 7.49 mmol) in 8 mL DCM was cooled to -78 C and was treated with sulfuryl chloride (0.609 ml, 7.49 mmol). After stirring for 20 minutes, the cooling bath was removed and the reaction mixture was allowed to stir for an additional 30 minutes. 5-Bromo-l,2,3,4- tetrahydroisoquinoline hydrochloride (ASW Medchem, Brunswick, NJ, 1.396 g, 5.62 mmol) was added, followed by triethylamine (7.31 ml, 52.4 mmol). The reaction mixture was then heated to 80 C for 30 minutes. The mixture was cooled to rt and poured into IN citric acid solution before being extracted into EtO Ac. The organics were dried over MgS04 and concentrated. Purification of the residue by silica gel column chromatography (0 to 100% EtO Ac/heptane) gave 5-bromo-N-(thiazol-2-yl)-3,4-dihydroisoquinoline-2(lH)-sulfonamide (1.092 g, 2.92 mmol). [M+H]+ = 375.6. |
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