发明人高志强,罗永刚,陈志强. "Method for the Synthesis of N,N-Diethyl-5,6-dihydrospiro[imidazo[2,1-c][1,4]oxazine-8,4'-piperidine]-6-carboxamide" [P]. 中国发明专利, 专利号 CN 108968427 A, 授权公告日 2019-05-19.
发明人杨光,黄志刚,徐明华. "A Process for Preparing High-Purity N,N-Diethyl-5,6-dihydrospiro[imidazo[2,1-c][1,4]oxazine-8,4'-piperidine]-6-carboxamide" [P]. 中国发明专利, 专利号 CN 112106366 A, 授权公告日 2025-04-09.
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