发明人胡光,高志强,韩伟. "Method for the Synthesis of 7-Methyl-3-(2-methylindoline-1-carbonyl)-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 109852279 A, 授权公告日 2020-05-14.
发明人罗永刚,郑宇鹏,朱建伟. "A Process for Preparing High-Purity 7-Methyl-3-(2-methylindoline-1-carbonyl)-4H-pyrido[1,2-a]pyrimidin-4-one" [P]. 中国发明专利, 专利号 CN 110424279 B, 授权公告日 2020-10-07.
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