Mueller T C, Johansson L, Sørensen M. "Method for the Synthesis of Ethyl 2-(2-formyl-1H-pyrrol-1-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate" [P]. European Patent, EP 3767172 A1, 2019-05-10.
发明人郑宇鹏,韩伟,赵玉洁. "A Process for Preparing High-Purity Ethyl 2-(2-formyl-1H-pyrrol-1-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110914137 B, 授权公告日 2020-08-16.
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