发明人孙丽萍,胡光,周伟. "Method for the Synthesis of 2-(Indolin-1-yl)-2-oxoethyl 3-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112965627 B, 授权公告日 2019-10-06.
发明人何建平,唐晓军,陈志强. "A Process for Preparing High-Purity 2-(Indolin-1-yl)-2-oxoethyl 3-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116129682 A, 授权公告日 2024-06-24.
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