发明人徐明华,郑宇鹏,何建平. "Method for the Synthesis of 4-(Thiophen-3-yl)-1,8-dioxa-4,11-diazaspiro[5.6]dodecan-3-one" [P]. 中国发明专利, 专利号 CN 117692364 B, 授权公告日 2015-03-20.
Nielsen H, Rossi M, Sørensen M. "A Process for Preparing High-Purity 4-(Thiophen-3-yl)-1,8-dioxa-4,11-diazaspiro[5.6]dodecan-3-one" [P]. European Patent, EP 3466716 A1, 2015-10-10.
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