发明人胡光,林芳,赵玉洁. "Method for the Synthesis of 2-(5-(Difluoromethyl)-3-(ethoxycarbonyl)-5,6-dihydrocyclopenta[c]pyrazol-1(4H)-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109809220 A, 授权公告日 2017-04-01.
发明人黄志刚,孙丽萍,陈志强. "A Process for Preparing High-Purity 2-(5-(Difluoromethyl)-3-(ethoxycarbonyl)-5,6-dihydrocyclopenta[c]pyrazol-1(4H)-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 115132760 B, 授权公告日 2020-08-02.
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