发明人朱建伟,王建平,何建平. "Method for the Synthesis of 6-Methyl-6-azaspiro[2.5]octane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117870138 B, 授权公告日 2019-12-11.
发明人陈志强,郑宇鹏,刘建华. "A Process for Preparing High-Purity 6-Methyl-6-azaspiro[2.5]octane-1-carboxylic acid" [P]. 中国发明专利, 专利号 CN 115039258 A, 授权公告日 2025-04-06.
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