发明人胡光,黄志刚,何建平. "Method for the Synthesis of ethyl 5-(chloromethyl)-2-methyl-7-oxo-4H,7H-pyrazolo[1,5-a]pyrimidine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114344411 A, 授权公告日 2019-06-25.
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