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发明人钱学锋,唐晓军,赵玉洁. "A Process for Preparing High-Purity 1-Oxa-9-azaspiro[5.5]Undecan-4-ol" [P]. 中国发明专利, 专利号 CN 110931609 A, 授权公告日 2017-06-18.
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