发明人韩伟,冯建国,杨光. "Method for the Synthesis of 4-[Ethyl-(2-hydroxy-ethyl)-amino]-piperidine-1-carboxylic acid benzyl ester" [P]. 中国发明专利, 专利号 CN 113478801 B, 授权公告日 2024-07-03.
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