发明人李文辉,赵玉洁,王建平. "Method for the Synthesis of N-(9H-Fluoren-2-yl)-1-(6-methylpyridazin-3-yl)piperidine-4-carboxamide" [P]. 中国发明专利, 专利号 CN 110831096 B, 授权公告日 2017-08-18.
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