发明人李文辉,赵玉洁,冯建国. "Method for the Synthesis of 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-6-chloronicotinic acid" [P]. 中国发明专利, 专利号 CN 116926214 B, 授权公告日 2019-11-16.
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