发明人徐明华,高志强,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114560144 A, 授权公告日 2023-08-12.
发明人马晓峰,郭海燕,黄志刚. "Method for the Synthesis of Ethyl 4-hydroxy-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 115850673 B, 授权公告日 2020-10-22.
发明人黄志刚,陈志强,朱建伟. "A Process for Preparing High-Purity Ethyl 4-hydroxy-6,7-dihydro-5H-cyclopenta[4,5]thieno[2,3-d]pyrimidine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 110859208 A, 授权公告日 2023-09-26.
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