Hydrochloric Acid → (S)-3-(1-Carbamoyl-1,1-diphenylmethyl)-1-(7-oxohept-1-yl)pyrrolidine
반응식
[C:1]([C:4]([C@@H:17]1[CH2:21][CH2:20][N:19]([CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH:28](OC)[O:29]C)[CH2:18]1)([C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)(=[O:3])[NH2:2].Cl>C(#N)C>[C:1]([C:4]([C@@H:17]1[CH2:21][CH2:20][N:19]([CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH:28]=[O:29])[CH2:18]1)([C:11]1[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=1)[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)(=[O:3])[NH2:2]참가 물질
4
반응 조건
- 온도
- 10 °C
실험 절차
To a three-necked 500 mL flask equipped with a mechanical stirrer, a nitrogen inlet, cooling bath, and a thermometer was added (S)-3-(1-carbamoyl-1,1-diphenylmethyl)-1-(7,7-dimethoxyhept-1-yl)pyrrolidine (16 g, 0.036 mol) and acetonitrile (100 mL). This mixture was cooled to about 10° C. and 100 mL of 1N aqueous hydrochloric acid was added while maintaining the reaction temperature at 20° C. or less. The resulting mixture was stirred at 20±5° C. for 2 hours. The reaction mixture was then extracted with dichloromethane (1×200 mL and 2×100 mL). The combined organic layers were washed with brine (200 mL) and dried with sodium sulfate (40 g). The organic layer was then concentrated under vacuum at about 25° C. to a volume of about 200 mL. This solution, containing the title intermediate as the hydrochloride salt, was used directly in the next step without further purification.