发明人杨光,何建平,赵玉洁. "Method for the Synthesis of Ethyl 2-(3-tosylureido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110571172 B, 授权公告日 2018-07-15.
发明人孙丽萍,陈志强,林芳. "A Process for Preparing High-Purity Ethyl 2-(3-tosylureido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112258586 A, 授权公告日 2023-08-23.
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