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发明人高志强,徐明华,陈志强. "Method for the Synthesis of 7,7-Dimethyl-2-(methylsulfonyl)-6,8-dioxa-2-azaspiro[3.5]nonane" [P]. 中国发明专利, 专利号 CN 108024777 B, 授权公告日 2021-03-21.
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