发明人胡光,钱学锋,唐晓军. "Method for the Synthesis of Ethyl 5-methyl-3,4-dioxo-2,3,4,5-tetrahydrothieno[3,2-c]quinoline-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110650350 A, 授权公告日 2017-05-01.
发明人朱建伟,徐明华,林芳. "A Process for Preparing High-Purity Ethyl 5-methyl-3,4-dioxo-2,3,4,5-tetrahydrothieno[3,2-c]quinoline-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116932452 A, 授权公告日 2020-04-21.
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