5-Chloro-1H-indole-2-carboxylic acid → 5-Chloro-1H-indole-2-carboxylic acid ((1S)-benzyl-2-oxo-2-thiazolidin-3-yl-ethyl)-amide
Reaction equation
Cl.[NH2:2][C@@H:3]([CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)[C:4]([N:6]1[CH2:10][CH2:9][S:8][CH2:7]1)=[O:5].[Cl:18][C:19]1[CH:20]=[C:21]2[C:25](=[CH:26][CH:27]=1)[NH:24][C:23]([C:28](O)=[O:29])=[CH:22]2>>[CH2:11]([C@H:3]([NH:2][C:28]([C:23]1[NH:24][C:25]2[C:21]([CH:22]=1)=[CH:20][C:19]([Cl:18])=[CH:27][CH:26]=2)=[O:29])[C:4](=[O:5])[N:6]1[CH2:10][CH2:9][S:8][CH2:7]1)[C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1Participants
3
Procedure
(S)-2-Amino-3-phenyl-1-thiazolidin-3-yl-propan-1-one hydrochloride (2.6 mmol) and 5-chloro-1H-indole-2-carboxylic acid (2.6 mmol) were coupled according to Procedure A (0-25° C. reaction temperature, 96 hour reaction time, washed with acid first then base). The crude product was triturated with 1:1 ether-hexanes and dried. Yield 966 mg, 91%; HPLC (60/40) 7.99 minutes (97%); PBMS 414/416 (MH+, 100%);
Workup
- custom0-25° C. reaction temperature, 96 hour reaction time