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发明人郑宇鹏,冯建国,黄志刚. "Method for the Synthesis of N-(Thiophen-2-yl)-1-oxa-4-thia-8-azaspiro[4.5]decane-8-carboxamide" [P]. 中国发明专利, 专利号 CN 111368684 B, 授权公告日 2016-11-10.
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