[S:1]([CH2:5][C:6]([NH2:8])=[S:7])(=[O:4])(=[O:3])[NH2:2].[Cl:9][C:10]1[CH:11]=[C:12]([CH:17]=[CH:18][C:19]=1[Cl:20])[C:13](=O)[CH2:14]Br>C(O)C>[Cl:9][C:10]1[CH:11]=[C:12]([C:13]2[N:8]=[C:6]([CH2:5][S:1]([NH2:2])(=[O:4])=[O:3])[S:7][CH:14]=2)[CH:17]=[CH:18][C:19]=1[Cl:20]A mixture of sulfamoylthioacetamide (7.7 g., 0.05 mol) and 3,4-dichlorophenacyl bromide (13.4 g., 0.05 mol) in ethanol (50 ml) was heated at reflux for 2 hours. After cooling and filtration there was obtained 11.5 g. of the desired intermediate, m.p. 187°-190° C.
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