发明人刘建华,徐明华,胡光. "Method for the Synthesis of 2-Methyl-5-oxa-2,8-diazaspiro[3.5]Nonane" [P]. 中国发明专利, 专利号 CN 108081879 A, 授权公告日 2023-08-20.
Anderson J P, Patel M V, Klinger H. "A Process for Preparing High-Purity 2-Methyl-5-oxa-2,8-diazaspiro[3.5]Nonane" [P]. US Patent, US 11209758 B2, 2021-05-11.
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