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发明人刘建华,陈志强,林芳. "A Process for Preparing High-Purity 5-(tert-Butoxycarbonyl)-5-azaspiro[2.4]heptane-7-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112392220 A, 授权公告日 2025-06-25.
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