发明人王建平,郭海燕,林芳. "Method for the Synthesis of 5-(Ethoxycarbonyl)-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112958742 B, 授权公告日 2018-06-25.
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