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发明人冯建国,罗永刚,徐明华. "Method for the Synthesis of Methyl 11-oxo-6,8,9,11-tetrahydro-7H-pyrido[2,1-b]quinazoline-3-carboxylate" [P]. 中国发明专利, 专利号 CN 110948171 B, 授权公告日 2021-06-14.
发明人杨光,钱学锋,沈红梅. "A Process for Preparing High-Purity Methyl 11-oxo-6,8,9,11-tetrahydro-7H-pyrido[2,1-b]quinazoline-3-carboxylate" [P]. 中国发明专利, 专利号 CN 108711497 A, 授权公告日 2021-02-27.
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