Dimethylformamide → 4-{(S)-2-[(4-Benzyloxycarbonylmethoxy-quinoline-2-carbonyl)-amino]-4-tert-butoxycarbonyl-butyryl}-piperazine-1-carboxylic acid ethyl ester

Reaction equation

[CH2:1]([O:3][C:4]([N:6]1[CH2:11][CH2:10][N:9]([C:12](=[O:37])[C@@H:13]([NH:23][C:24]([C:26]2[CH:35]=[C:34]([OH:36])[C:33]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[N:27]=2)=[O:25])[CH2:14][CH2:15][C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:8][CH2:7]1)=[O:5])[CH3:2].CN(C=O)C.C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:49]([O:56][C:57](=[O:60])[CH2:58]Br)[C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1>O>[CH2:1]([O:3][C:4]([N:6]1[CH2:7][CH2:8][N:9]([C:12](=[O:37])[C@@H:13]([NH:23][C:24]([C:26]2[CH:35]=[C:34]([O:36][CH2:58][C:57]([O:56][CH2:49][C:50]3[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=3)=[O:60])[C:33]3[C:28](=[CH:29][CH:30]=[CH:31][CH:32]=3)[N:27]=2)=[O:25])[CH2:14][CH2:15][C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:10][CH2:11]1)=[O:5])[CH3:2]