Fischer A B, Davis P L, O'Brien P Q. "一种的合成方法" [P]. US Patent, US 9205702 B2, 2025-01-23.
发明人孙丽萍,韩伟,冯建国. "Method for the Synthesis of Ethyl 5-amino-4-((4-methoxyphenyl)carbamoyl)-3-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113480175 A, 授权公告日 2017-10-04.
发明人韩伟,钱学锋,郑宇鹏. "A Process for Preparing High-Purity Ethyl 5-amino-4-((4-methoxyphenyl)carbamoyl)-3-methylthiophene-2-carboxylate" [P]. 中国发明专利, 专利号 CN 111869278 B, 授权公告日 2019-03-21.
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