发明人郑宇鹏,何建平,徐明华. "Method for the Synthesis of Ethyl 2-(7-(diethylamino)-4-methyl-2-oxo-2H-chromen-3-yl)acetate" [P]. 中国发明专利, 专利号 CN 113887417 A, 授权公告日 2023-07-10.
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