1-Benzyl-4-[4-(4-chloro-phenoxy)-benzenesulfonyl]-piperidine-4-carboxylic acid ethyl ester → 4-[4-(4-Chlorophenoxy)benzenesulfonyl]-1-benzylpiperidine-4-carboxylic acid
反応式
C([O:3][C:4]([C:6]1([S:19]([C:22]2[CH:27]=[CH:26][C:25]([O:28][C:29]3[CH:34]=[CH:33][C:32]([Cl:35])=[CH:31][CH:30]=3)=[CH:24][CH:23]=2)(=[O:21])=[O:20])[CH2:11][CH2:10][N:9]([CH2:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH2:8][CH2:7]1)=[O:5])C>C1COCC1.CO.[OH-].[Na+]>[CH2:12]([N:9]1[CH2:10][CH2:11][C:6]([S:19]([C:22]2[CH:27]=[CH:26][C:25]([O:28][C:29]3[CH:30]=[CH:31][C:32]([Cl:35])=[CH:33][CH:34]=3)=[CH:24][CH:23]=2)(=[O:20])=[O:21])([C:4]([OH:5])=[O:3])[CH2:7][CH2:8]1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1参加物
4
実験手順
1-Benzyl-4-[4-(4-chloro-phenoxy)-benzenesulfonyl]-piperdine-4-carboxylic acid was prepared starting from 1-benzyl-4-[4-(4-chloro-phenoxy)-benzenesulfonyl]-piperidine-4- carboxylic acid ethyl ester (2.11 g, 4.1 mmol) dissolved in THF:methanol (3:1 150 ml) and 10N NaOH (20 ml). The resulting reaction mixture was worked up as outlined in example 83. Yield 1.11 g (56%); white solid; mp 201° C.; MS: 485.9 (M+H)+