C(O)C.[Cl:4][C:5]1[CH:6]=[C:7]([CH:23]=[CH:24][C:25]=1[Cl:26])[CH:8]=[N:9][C:10]1[CH:15]=[CH:14][C:13]([CH:16]2[S:20][C:19](=[O:21])[NH:18][C:17]2=[O:22])=[CH:12][CH:11]=1.[BH4-].[Na+]>O>[Cl:4][C:5]1[CH:6]=[C:7]([CH:23]=[CH:24][C:25]=1[Cl:26])[CH2:8][NH:9][C:10]1[CH:11]=[CH:12][C:13]([CH:16]2[S:20][C:19](=[O:21])[NH:18][C:17]2=[O:22])=[CH:14][CH:15]=1Into 40 ml of ethanol were suspended 0.40 g of 5-(4-(3,4-dichlorobenzylideneamino) phenyl)thiazolidine-2,4-dione, and, after added 0.24 g of sodium borohydride, the suspension was stirred for 2 hours at 50° C. The reaction mixture was poured into 200 ml of water, which was extracted with ethyl acetate. The organic layer was washed with water and dried. Then, solvent was distilled off. The residue was recrystallized from iso-propanol to obtain 0.20 g of title compound.
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