发明人郑宇鹏,李文辉,罗永刚. "Method for the Synthesis of tert-butyl 6-(p-tolylsulfonyloxy)-2-azaspiro[3.3]heptane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 113053405 B, 授权公告日 2018-03-10.
发明人赵玉洁,刘建华,高志强. "A Process for Preparing High-Purity tert-butyl 6-(p-tolylsulfonyloxy)-2-azaspiro[3.3]heptane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 109008953 A, 授权公告日 2021-06-25.
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