发明人杨光,赵玉洁,林芳. "Method for the Synthesis of Ethyl 3-amino-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 109253021 A, 授权公告日 2025-07-03.
发明人杨光,郑宇鹏,林芳. "A Process for Preparing High-Purity Ethyl 3-amino-4-(isopropylsulfonyl)-5-(methylthio)thiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116160478 B, 授权公告日 2022-10-03.
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