Triethylamine → HCID 23153909, compound
Reaction equation
O[CH2:2][CH2:3][C:4]1[CH:9]=[CH:8][C:7]([N:10]2[C:32]([NH:33][C:34](=[O:36])[CH3:35])=[C:13]3[C:14](=[O:31])[N:15]([CH2:22][C:23]4[CH:28]=[CH:27][C:26]([O:29][CH3:30])=[CH:25][CH:24]=4)[C:16]4[CH:17]=[CH:18][CH:19]=[CH:20][C:21]=4[C:12]3=[N:11]2)=[CH:6][CH:5]=1.C([N:39]([CH2:42][CH3:43])[CH2:40][CH3:41])C.[CH3:44]S(Cl)(=O)=O.C(=O)([O-])O.[Na+]>O1CCCC1>[CH3:30][O:29][C:26]1[CH:27]=[CH:28][C:23]([CH2:22][N:15]2[C:16]3[CH:17]=[CH:18][CH:19]=[CH:20][C:21]=3[C:12]3=[N:11][N:10]([C:7]4[CH:6]=[CH:5][C:4]([CH2:3][CH2:2][N:39]5[CH2:40][CH2:41][CH2:44][CH2:43][CH2:42]5)=[CH:9][CH:8]=4)[C:32]([NH:33][C:34](=[O:36])[CH3:35])=[C:13]3[C:14]2=[O:31])=[CH:24][CH:25]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
To a solution of N-{2-[4-(2-hydroxyethyl)phenyl]-5-(4-methoxybenzyl)-4-oxo-4,5-dihydro-2H-pyrazolo[4,3-c]quinolin-3-yl}acetamide (0.2 g) and triethylamine (0.12 ml) in tetrahydrofuran (25 ml) was added dropwise methanesulfonyl chloride (0.048 ml) at 0° C. The solution was stirred at 0° C. for 2 hours and at room temperature for 15 minutes, an aqueous sodium hydrogen carbonate solution was added thereto, and extracted with ethyl acetate. The extract was washed with water and saturated brine, dried and concentrated under reduced pressure. To the residue was added ethanol (30 ml), triethylamine (0.087 ml), piperidine (0.045 ml) and the mixture was refluxed with heating. After 2 hours, piperidine (0.1 ml) was added thereto, and the mixture was stirred with heating for 6 hours. The solvent was distilled off under reduced pressure, ethyl acetate was added thereto, and extracted with 1N hydrochloric acid. The aqueous layer was washed ether, basified by adding a 2N aqueous sodium hydroxide solution, and extracted with ethyl acetate. The extract was washed with saturated brine, dried and concentrated under reduced pressure to obtain the target compound (0.13 g).
Workup
- extractionextracted with ethyl acetate
- washThe extract was washed with water and saturated brine
- customdried
- concentrationconcentrated under reduced pressure
- additionTo the residue was added ethanol (30 ml), triethylamine (0.087 ml), piperidine (0.045 ml)
- temperaturethe mixture was refluxed
- temperaturewith heating
- waitAfter 2 hours
- additionpiperidine (0.1 ml) was added
- stirringthe mixture was stirred
- temperaturewith heating for 6 hours
- distillationThe solvent was distilled off under reduced pressure, ethyl acetate
- additionwas added
- extractionextracted with 1N hydrochloric acid
- washThe aqueous layer was washed ether
- additionby adding a 2N aqueous sodium hydroxide solution
- extractionextracted with ethyl acetate
- washThe extract was washed with saturated brine
- customdried
- concentrationconcentrated under reduced pressure
Sources & evidence
- ORD record
- ord-af19d5c5cb5b42c5ad5d125c7600a143
- Source dataset
- uspto-grants-2010_11
- Patent number
- US07842701B2
Reaction notes
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