发明人郑宇鹏,钱学锋,郭海燕. "Method for the Synthesis of 4-[3-(N,N-Dimethylamino)phenyl]-4-oxobutyric acid" [P]. 中国发明专利, 专利号 CN 109500585 A, 授权公告日 2020-09-19.
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