[CH2:1]([NH:4][CH:5]1[CH2:13][CH2:12][C:8]2[N:9]=[CH:10][S:11][C:7]=2[CH2:6]1)[CH2:2][CH3:3].[CH2:14]1[C:22]2[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=2)[CH2:16][CH:15]1[NH:23][C:24]([NH:26][CH2:27][CH2:28][CH2:29][CH:30]=O)=[O:25]>>[CH2:14]1[C:22]2[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=2)[CH2:16][CH:15]1[NH:23][C:24]([NH:26][CH2:27][CH2:28][CH2:29][CH2:30][N:4]([CH2:1][CH2:2][CH3:3])[CH:5]1[CH2:13][CH2:12][C:8]2[N:9]=[CH:10][S:11][C:7]=2[CH2:6]1)=[O:25]Compound 60 is prepared from 1C and 60C as described for 1. The salt of maleic acid is crystallized from acetonitrile/diethylether.
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