发明人何建平,张德明,郭海燕. "Method for the Synthesis of N-(3-Carbamoyl-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-succinamic acid" [P]. 中国发明专利, 专利号 CN 114365628 B, 授权公告日 2022-02-11.
发明人胡光,唐晓军,陈志强. "A Process for Preparing High-Purity N-(3-Carbamoyl-5,6-dihydro-4H-cyclopenta[b]thiophen-2-yl)-succinamic acid" [P]. 中国发明专利, 专利号 CN 108297377 A, 授权公告日 2019-07-15.
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