发明人马晓峰,郑宇鹏,韩伟. "Method for the Synthesis of 2-(2-Ethylpyrrolidin-1-yl)pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115925898 B, 授权公告日 2017-05-24.
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