Structure of 1261677-80-8
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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. : | 1261677-80-8 |
Formula : | C9H6BrNO |
M.W : | 224.05 |
SMILES Code : | OC1=CC(Br)=CC2=C1C=CC=N2 |
MDL No. : | MFCD11878500 |
InChI Key : | DSLUBMAJPKDQJM-UHFFFAOYSA-N |
Pubchem ID : | 136216619 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319 |
Precautionary Statements: | P261-P305+P351+P338 |
* 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 |
---|---|---|
41% | Step 2: 1.5 g (0.0064 mol) of 7-bromo-5-methoxy-quinoline were refluxed with 48% HBr (30 ml) for 20h. After cooling to room temperature reaction mixture was poured into 100 ml of water and basified with saturated ammonia solution. Product was filtered off, washed with water and dried at 50C in vacuo. Yield of 7-bromo-5-hydroxy-quinoline was 600 mg (41%>).1H-NMR (400 MHz, d6-DMSO): delta(lH,s), 7.48 (lH,m), 7.18 (lH,s) ppm. | |
41% | With hydrogen bromide; In water; for 20.0h;Reflux; | Step 2:[0123]1.5 g (0.0064 mol) of 7-bromo-5-methoxy-quinoline were refluxed with 48% HBr (30 ml) for 20 h. After cooling to room temperature reaction mixture was poured into 100 ml of water and basified with saturated ammonia solution. Product was filtered off, washed with water and dried at 50??? C. in vacuo. Yield of 7-bromo-5-hydroxy-quinoline was 600 mg (41%).[0124]1H-NMR (400 MHz, d6-DMSO): ????=11.1 (1H, s(broad)), 8.88 (1H, s), 8.49 (1H, d), 7.68 (1H,USD), 7.48 (1H, m), 7.18 (1H,USD) ppm. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With di-tert-butyl-diazodicarboxylate; triphenylphosphine; In dichloromethane; at 20℃; | A Example 27100 mg of 7-Bromo-quinolin-5-ol, 234 mg triphenylphosphine and 133 mg of (R)-4-((S)-l- hydroxyethyl)-l-((S)-l-(4-methoxyphenyl)ethyl)pyrrolidin-2-one was dissolved in 2.5 mL of DCM and 7.5 mL of THF. 205 mg DBAD was added (slightly exothermic) and the mixture was stirred overnight at room temperature. Then additional 234 mg triphenylphosphine and 205 mg DBAD was added and the mixture stirred over the weekend. The mixture was diluted with DCM and extracted with IN NaOH and water and the organic phase was concentrated in vacuo. The remaining material was treated with 2 mL of trifluoracetic acid (TFA) and heated 2 h and 15 min at 90C in the microwave. The mixture was concentrated and purified with HPLC (XbridgeC18, MeOH / water, TFA) to yield 165 mg yellow solid which was purified by FCC over silica ( 20 g Si02; DCM^ DCM: MeOH 90: 10) to yield 90 mg solid as Example 27. Analysis: HPLC-MS: Rt = 0.56 min (method X001 002), M+H = 335/337. 1H-NMR (400 MHz, DMSO-d6): delta = 8.95 (lH,d), 8.50 (lH,d), 7.80 (lH,s), 7.57 (2H, m), 7.30 (1H, s), 4.85 (1H, m), 3.40 (1H, t), 3.15-3.10 (1H, m), 2.82 (1H, m), 2.40-2.22 (2H,m), 1.32 (3H,d) ppm. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
72 mg | With di-tert-butyl-diazodicarboxylate; triphenylphosphine; In tetrahydrofuran; dichloromethane; at 20℃; for 14.0h;Inert atmosphere; | 100 mg 7-Bromo-quinolin-5-ol, 77.5 mg of 2-(hydroxymethyl)nicotinamide 3.7, 233.5 mg of triphenylphosphine and 205 mg of Di-tertbutyl-azodicarboxylate (DBAD) were dissolved in 2.5 mL of DCM and 7.5 mL of THF under Argon at room temperature. After 14 h the precipitate was collected and dried. The mother liquor was concentrated and the formed precipitate again collected to yield 72 mg Example 22.Analysis: HPLC-MS: Rt = 0.48 min (method X001 002), M+H = 358/360.1H-NMR (400 MHz, DMSO-d6): delta = 8.91 (lH,d), 8.65 (lH,d), 8.48 (lH,d), 8.05 (1H, s), 7.95 (1H, d), 7.80 (1H, s), 6.65-7.50 (3H, m), 7.31 (lH,s), 5.58 (2H,s) ppm. |
72 mg | With di-tert-butyl-diazodicarboxylate; triphenylphosphine; In tetrahydrofuran; dichloromethane; at 20℃; for 14.0h;Inert atmosphere; | Synthesis of 2-((7-bromoquinolin-5-yloxy)methyl)nicotinamide (Example 22) 100 mg 7-Bromo-quinolin-5-ol, 77.5 mg of 2-(hydroxymethyl)nicotinamide 3.7, 233.5 mg of triphenylphosphine and 205 mg of Di-tertbutyl-azodicarboxylate (DBAD) were dissolved in 2.5 mL of DCM and 7.5 mL of THF under Argon at room temperature. After 14 h the precipitate was collected and dried. The mother liquor was concentrated and the formed precipitate again collected to yield 72 mg Example 22. Analysis: HPLC-MS: Rt=0.48 min (method X001-002), M+H=358/360. 1H-NMR (400 MHz, DMSO-d6): delta=8.91 (1H, d), 8.65 (1H, d), 8.48 (1H, d), 8.05 (1H, s), 7.95 (1H, d), 7.80 (1H, s), 6.65-7.50 (3H, m), 7.31 (1H,USD), 5.58 (2H,USD) ppm. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90 mg | Synthesis of (R)-4-((R)-1-(7-bromoquinolin-5-yloxy)ethyl)pyrrolidin-2-one (Example 27) 100 mg of 7-Bromo-quinolin-5-ol, 234 mg triphenylphosphine and 133 mg of (R)-4-((S)-1-hydroxyethyl)-1-((S)-1-(4-methoxyphenyl)ethyl)pyrrolidin-2-one was dissolved in 2.5 mL of DCM and 7.5 mL of THF. 205 mg DBAD was added (slightly exothermic) and the mixture was stirred overnight at room temperature. Then additional 234 mg triphenylphosphine and 205 mg DBAD was added and the mixture stirred over the weekend. The mixture was diluted with DCM and extracted with 1N NaOH and water and the organic phase was concentrated in vacuo. The remaining material was treated with 2 mL of trifluoracetic acid (TFA) and heated 2 h and 15 min at 90 C. in the microwave. The mixture was concentrated and purified with HPLC (XbridgeC18, MeOH/water, TFA) to yield 165 mg yellow solid which was purified by FCC over silica (20 g SiO2; DCM?DCM:MeOH 90:10) to yield 90 mg solid as Example 27. Analysis: HPLC-MS: Rt=0.56 min (method X001-002), M+H=335/337. 1H-NMR (400 MHz, DMSO-d6): delta=8.95 (1H, d), 8.50 (1H, d), 7.80 (1H, s), 7.57 (2H, m), 7.30 (1H, s), 4.85 (1H, m), 3.40 (1H, t), 3.15-3.10 (1H, m), 2.82 (1H, m), 2.40-2.22 (2H, m), 1.32 (3H, d) ppm. |