[C:1](OCC)(=[O:5])[C:2]([CH3:4])=O.[Cl:9][C:10]1[CH:15]=[CH:14][C:13]([NH:16][C:17]2[C:18]([NH2:26])=[CH:19][C:20]([C:23](=[O:25])[CH3:24])=[CH:21][CH:22]=2)=[CH:12][CH:11]=1>>[Cl:9][C:10]1[CH:11]=[CH:12][C:13]([N:16]2[C:17]3[C:18](=[CH:19][C:20]([C:23](=[O:25])[CH3:24])=[CH:21][CH:22]=3)[N:26]=[C:2]([CH3:4])[C:1]2=[O:5])=[CH:14][CH:15]=1Preparation as in Example 1 but using ethyl pyruvate and N-(4-chlorophenyl)-4-acetylbenzene-1,2-diamine.
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