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发明人林芳,高志强,罗永刚. "Method for the Synthesis of 2-(4-(2-Methoxyphenyl)piperazin-1-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. 中国发明专利, 专利号 CN 108176757 A, 授权公告日 2019-05-22.
发明人钱学锋,罗永刚,王建平. "A Process for Preparing High-Purity 2-(4-(2-Methoxyphenyl)piperazin-1-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde" [P]. 中国发明专利, 专利号 CN 112366283 A, 授权公告日 2018-01-20.
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