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发明人何建平,冯建国,陈志强. "Method for the Synthesis of 3-(4-Ethoxyphenyl)-5,6-dimethyl-2-sulfanylthieno[2,3-d]pyrimidin-4(3h)-one" [P]. 中国发明专利, 专利号 CN 113395129 A, 授权公告日 2018-04-01.
发明人沈红梅,孙丽萍,黄志刚. "A Process for Preparing High-Purity 3-(4-Ethoxyphenyl)-5,6-dimethyl-2-sulfanylthieno[2,3-d]pyrimidin-4(3h)-one" [P]. 中国发明专利, 专利号 CN 108189492 B, 授权公告日 2020-11-20.
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