发明人陈志强,王建平,李文辉. "Method for the Synthesis of trans-2-tert-Butoxycarbonyl-2-azaspiro[5.5]undecane-9-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114628912 B, 授权公告日 2019-04-09.
发明人钱学锋,徐明华,陈志强. "A Process for Preparing High-Purity trans-2-tert-Butoxycarbonyl-2-azaspiro[5.5]undecane-9-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113788622 A, 授权公告日 2016-04-12.
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