发明人王建平,林芳,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109045554 A, 授权公告日 2022-05-19.
发明人徐明华,孙丽萍,钱学锋. "Method for the Synthesis of tert-Butyl 3-(aminomethyl)-2-oxa-9-azaspiro[5.5]undecane-9-carboxylate" [P]. 中国发明专利, 专利号 CN 116013824 B, 授权公告日 2021-08-07.
发明人马晓峰,黄志刚,罗永刚. "A Process for Preparing High-Purity tert-Butyl 3-(aminomethyl)-2-oxa-9-azaspiro[5.5]undecane-9-carboxylate" [P]. 中国发明专利, 专利号 CN 110228020 B, 授权公告日 2020-11-11.
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