[CH3:1][O:2][C:3](=[O:32])[CH2:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][NH:12][CH2:13][CH2:14][CH2:15][N:16]2[C:24](=[O:25])[NH:23][C:22]3[C:17]2=[N:18][C:19]([O:27][CH2:28][CH2:29][CH2:30][CH3:31])=[N:20][C:21]=3[NH2:26])=[CH:7][CH:6]=1.Cl.[CH3:34][N:35]([CH3:40])[CH2:36][C:37](Cl)=[O:38].C(N(CC)CC)C>CC#N>[CH3:1][O:2][C:3](=[O:32])[CH2:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][N:12]([CH2:13][CH2:14][CH2:15][N:16]2[C:24](=[O:25])[NH:23][C:22]3[C:17]2=[N:18][C:19]([O:27][CH2:28][CH2:29][CH2:30][CH3:31])=[N:20][C:21]=3[NH2:26])[C:37](=[O:38])[CH2:36][N:35]([CH3:40])[CH3:34])=[CH:7][CH:6]=1The product of example 1, step (ix) (200 mg) was suspended in MeCN. N,N-dimethylglycyl chloride hydrochloride (110 mg) and triethylamine (0.19 ml) were added and the mixture stirred at rt for 10 h. The mixture was purified by RPHPLC. Yield 100 mg.
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