发明人张德明,孙丽萍,钱学锋. "Method for the Synthesis of 2-Methoxyethyl 4-chloro-5-methyl-2-(pyridin-3-yl)thieno[2,3-d]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 114560370 B, 授权公告日 2019-01-22.
发明人冯建国,陈志强,王建平. "A Process for Preparing High-Purity 2-Methoxyethyl 4-chloro-5-methyl-2-(pyridin-3-yl)thieno[2,3-d]pyrimidine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 116652087 A, 授权公告日 2022-09-21.
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