[Cl:1][C:2]1[CH:11]=[CH:10][C:5]([C:6]([NH:8][NH2:9])=[O:7])=[CH:4][CH:3]=1.S(O)(O)(=O)=O.C[NH:18][C:19](=[NH:21])S.[OH-].[Na+].O>CO>[C:19]([NH:9][NH:8][C:6](=[O:7])[C:5]1[CH:10]=[CH:11][C:2]([Cl:1])=[CH:3][CH:4]=1)(=[NH:18])[NH2:21]The synthesis was carried out according to the method of Example 1-(1). 4-Chlorobenzoic acid hydrazide (34.8 g), methylisothiourea sulfate (115.4 g), sodium hydroxide (17.1 g), water (440 ml) and methanol (700 ml) were used as reagents. The mixture was stirred for 4 days at 60° C. to give 45.4 g of a pale-brown solid which was a mixture of a hydrazide compound and the objective compound.
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