Lefèvre J P, Rossi M, Jørgensen K. "Method for the Synthesis of 8-Benzyl-4-pentanoyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. European Patent, EP 3330988 A1, 2016-09-08.
发明人刘建华,唐晓军,何建平. "A Process for Preparing High-Purity 8-Benzyl-4-pentanoyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109294793 A, 授权公告日 2021-02-09.
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