ClC1C=CC([N+]([O-])=O)=C(C)C=1C.[Cl:13][C:14]1[C:15]([CH3:29])=[C:16]([CH2:23][C:24](=O)[C:25]([OH:27])=[O:26])[C:17]([N+:20]([O-])=O)=[CH:18][CH:19]=1>>[Cl:13][C:14]1[C:15]([CH3:29])=[C:16]2[C:17](=[CH:18][CH:19]=1)[NH:20][C:24]([C:25]([OH:27])=[O:26])=[CH:23]2The compound was prepared via 4-chloro-2,3-dimethylnitrobenzene (m.p. 57°-58° C) and 3-(3-chloro-2-methyl-6-nitrophenyl)-pyruvic acid (oil).
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