[CH:1]([NH:3][C@@H:4]1[C:22](=[O:23])[N:6]2[C:7]([C:19]([OH:21])=[O:20])=[C:8]([CH2:11]OC(=O)CC(=O)C)[CH2:9][S:10][C@H:5]12)=[O:2].[N:24]1[N:28]2[CH:29]=[CH:30][CH:31]=[CH:32][C:27]2=[CH:26][CH:25]=1>>[CH:1]([NH:3][C@@H:4]1[C:22](=[O:23])[N:6]2[C:7]([C:19]([O-:21])=[O:20])=[C:8]([CH2:11][C:26]3[CH:25]=[NH+:24][N:28]4[CH:29]=[CH:30][CH:31]=[CH:32][C:27]=34)[CH2:9][S:10][C@H:5]12)=[O:2]7β-Formamido-3-(3-oxobutyryloxymethyl)-3-cephem-4-carboxylic acid and pyrazolo[1,5-a]pyridine are reacted in the same manner as described in Example 5 to give the above-identified compound.
Wird geladen…