发明人罗永刚,李文辉,林芳. "Method for the Synthesis of Ethyl 3-amino-1-(2,2-difluoroethyl)-1H-pyrazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 109613897 A, 授权公告日 2020-08-13.
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