发明人王建平,刘建华,杨光. "Method for the Synthesis of N*1*-Methyl-N*1*-(1-methyl-piperidin-4-yl)-ethane-1,2-diamine" [P]. 中国发明专利, 专利号 CN 112232413 A, 授权公告日 2023-10-09.
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