发明人罗永刚,冯建国,李文辉. "Method for the Synthesis of 6-(((9H-fluoren-9-yl)methoxy)carbonyl)-6-azabicyclo[3.2.1]Octane-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114890559 B, 授权公告日 2019-02-15.
发明人王建平,赵玉洁,郭海燕. "A Process for Preparing High-Purity 6-(((9H-fluoren-9-yl)methoxy)carbonyl)-6-azabicyclo[3.2.1]Octane-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114361772 A, 授权公告日 2021-02-05.
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