发明人沈红梅,罗永刚,何建平. "Method for the Synthesis of 3-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)-2-methyl-4H-pyran-4-one" [P]. 中国发明专利, 专利号 CN 113661953 A, 授权公告日 2019-11-13.
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