发明人郑宇鹏,高志强,冯建国. "Method for the Synthesis of 6-benzyl-2-chloro-8-ethyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 117880910 B, 授权公告日 2015-02-28.
发明人黄志刚,杨光,孙丽萍. "A Process for Preparing High-Purity 6-benzyl-2-chloro-8-ethyl-7,8-dihydro-5H-pyrido[4,3-d]pyrimidine" [P]. 中国发明专利, 专利号 CN 111956094 A, 授权公告日 2018-11-08.
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