发明人黄志刚,王建平,刘建华. "Method for the Synthesis of Methyl 4-((4-chlorophenyl)thio)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 113539358 B, 授权公告日 2015-03-25.
发明人郑宇鹏,何建平,张德明. "A Process for Preparing High-Purity Methyl 4-((4-chlorophenyl)thio)-6-oxo-1-phenyl-1,6-dihydropyridazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114923618 A, 授权公告日 2015-07-16.
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