[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[NH:10][C:11]3[CH:16]=[CH:15][N:14]=[CH:13][C:12]=3[N:17]=2)=[C:5]([O:18][CH2:19][CH2:20][CH2:21][Cl:22])[CH:4]=1.[C:23]([NH2:27])([CH3:26])([CH3:25])[CH3:24]>C(O)C>[ClH:22].[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]2[NH:10][C:11]3[CH:16]=[CH:15][N:14]=[CH:13][C:12]=3[N:17]=2)=[C:5]([O:18][CH2:19][CH2:20][CH2:21][NH:27][C:23]([CH3:26])([CH3:25])[CH3:24])[CH:4]=1The above compound was prepared by reacting the product of stage (a) of Example 43 and tert-butylamine in ethanol at 100° C. for 8 hours as described in stage (b) in Example 43, m.p. 252°-253° C. (hydrate).
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