[CH3:1][O:2][C:3](=[O:28])[C@H:4]([CH2:24][CH2:25][S:26][CH3:27])[NH:5][C:6](=[O:23])[C:7]1[CH:12]=[CH:11][C:10]([CH2:13][N:14]=[N+]=[N-])=[CH:9][C:8]=1[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1.C(N(CC)CC)C.C(S)CCS>CO>[CH3:1][O:2][C:3](=[O:28])[C@H:4]([CH2:24][CH2:25][S:26][CH3:27])[NH:5][C:6](=[O:23])[C:7]1[CH:12]=[CH:11][C:10]([CH2:13][NH2:14])=[CH:9][C:8]=1[C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=1To the resultant compound from Example 18A in methanol is added triethylamine (3.0 equivalent) and propane 1,3-dithiol (3.0 equivalents). After the reaction is judged complete by TLC analysis, the mixture is filtered and evaporated. Chromatography of the residue on silica gel provides the title product.
불러오는 중…