发明人唐晓军,徐明华,胡光. "Method for the Synthesis of Ethyl 6-ethyl-2-(3-phenylthioureido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114952022 B, 授权公告日 2021-06-07.
发明人沈红梅,张德明,刘建华. "A Process for Preparing High-Purity Ethyl 6-ethyl-2-(3-phenylthioureido)-4,5,6,7-tetrahydrothieno[2,3-c]pyridine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 112661891 B, 授权公告日 2015-11-07.
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