1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 3-[2-(2,5-Bis-trifluoromethyl-benzoylamino)-acetylamino]-azetidine-1-carboxylic acid tert-butylester

Reaction equation

[C:12]([CH3:13])([CH3:14])([CH3:15])[O:16][C:17](=[O:18])[N:19]1[CH2:20][CH:21]([NH2:23])[CH2:22]1.[CH3:1][CH2:2][N:3]=[C:4]=[N:5][CH2:6][CH2:7][CH2:8][N:9]([CH3:10])[CH3:11].[F:24][C:25]([c:26]1[c:27]([C:28](=[O:29])[NH:30][CH2:31][C:32](=[O:33])[OH:34])[cH:35][c:36]([C:39]([F:40])([F:41])[F:42])[cH:37][cH:38]1)([F:43])[F:44]>>[C:12]([CH3:13])([CH3:14])([CH3:15])[O:16][C:17](=[O:18])[N:19]1[CH2:20][CH:21]([NH:23][C:32]([CH2:31][NH:30][C:28]([c:27]2[c:26]([C:25]([F:24])([F:43])[F:44])[cH:38][cH:37][c:36]([C:39]([F:40])([F:41])[F:42])[cH:35]2)=[O:29])=[O:33])[CH2:22]1