发明人冯建国,钱学锋,孙丽萍. "Method for the Synthesis of 4-Chloro-N-(6-(4-chlorophenyl)-2-oxo-2H-pyran-3-yl)benzamide" [P]. 中国发明专利, 专利号 CN 112078466 A, 授权公告日 2017-08-22.
发明人王建平,林芳,刘建华. "A Process for Preparing High-Purity 4-Chloro-N-(6-(4-chlorophenyl)-2-oxo-2H-pyran-3-yl)benzamide" [P]. 中国发明专利, 专利号 CN 108318637 A, 授权公告日 2019-04-04.
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