发明人周伟,何建平,唐晓军. "Method for the Synthesis of 2-(1-(Tert-butoxycarbonyl)-2,2-dimethylpiperidin-4-ylidene)acetic acid" [P]. 中国发明专利, 专利号 CN 108270675 A, 授权公告日 2019-08-19.
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