Cesium carbonate → 4-{(S)-2-[(5-Benzyloxycarbonylmethoxy-1-phenyl-1H-pyrazole-3-carbonyl)-amino]-4-tert-butoxycarbonyl-butyryl}-piperazine-1-carboxylic acid ethyl ester

Reaktionsgleichung

[CH2:1]([O:3][C:4]([N:6]1[CH2:11][CH2:10][N:9]([C:12](=[O:38])[C@@H:13]([NH:23][C:24]([C:26]2[CH:30]=[C:29]([OH:31])[N:28]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=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].Br[CH2:40][C:41]([O:43][CH2:44][C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=1)=[O:42].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C.C(OCC)(=O)C>[CH2:1]([O:3][C:4]([N:6]1[CH2:11][CH2:10][N:9]([C:12](=[O:38])[C@@H:13]([NH:23][C:24]([C:26]2[CH:30]=[C:29]([O:31][CH2:40][C:41]([O:43][CH2:44][C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)=[O:42])[N:28]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=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]