ethyl (2R,3R)-3-{[(2S)-4-methyl-1-oxo-1-{4-[(2,3,4-trimethoxyphenyl)methyl]piperazin-1-yl}pentan-2-yl]carbamoyl}oxirane-2-carboxylate → HCID 23700901、化合物
反応式
[OH-].[Na+:2].C(O)C.[CH3:6][CH:7]([CH3:42])[CH2:8][C@H:9]([NH:31][C:32]([C@@H:34]1[O:36][C@H:35]1[C:37]([O:39]CC)=[O:38])=[O:33])[C:10]([N:12]1[CH2:17][CH2:16][N:15]([CH2:18][C:19]2[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[C:21]([O:27][CH3:28])[C:20]=2[O:29][CH3:30])[CH2:14][CH2:13]1)=[O:11]>C(O)C>[CH3:6][CH:7]([CH3:42])[CH2:8][C@H:9]([NH:31][C:32]([C@@H:34]1[O:36][C@H:35]1[C:37]([O-:39])=[O:38])=[O:33])[C:10]([N:12]1[CH2:13][CH2:14][N:15]([CH2:18][C:19]2[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[C:21]([O:27][CH3:28])[C:20]=2[O:29][CH3:30])[CH2:16][CH2:17]1)=[O:11].[Na+:2]参加物
4
実験手順
Under cooling with ice, a 0.48N sodium hydroxide-ethanol solution (9.48 ml) was added to an ethanol solution (20 ml) of ethyl trans-3-[(s)-3-methyl-1-{4-(2,3,4-trimethoxyphenylmethyl)piperazine-1-yl carbonyl}butylcarbamoyl]-oxirane-2-carboxylate (2.38 g) obtained above, and the mixture was stirred at room temperature for 2.5 hours. After removal of ethanol by distillation under reduced pressure, water was added, and any insoluble matters were removed by filtration using sellaite. The filtrate was concentrated and dried under reduced pressure to yield 2.31 g of sodium trans-3-[(s)-3-methyl-1-{4-(2,3,4-trimethoxyphenylmethyl)piperazine-1-yl carbonyl}butylcarbamoyl]oxirane-2-carboxylate as a light yellow powder (yield: 98%).