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发明人郑宇鹏,孙丽萍,李文辉. "Method for the Synthesis of 2-(2-(Methylamino)pyridin-3-yl)piperidine-1-carbaldehyde" [P]. 中国发明专利, 专利号 CN 111230053 A, 授权公告日 2020-09-01.
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