发明人赵玉洁,钱学锋,徐明华. "Method for the Synthesis of 1-Oxa-6-azaspiro[2.5]octane-6-carboxylic acid tert-butyl ester" [P]. 中国发明专利, 专利号 CN 114442550 A, 授权公告日 2025-05-07.
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