发明人何建平,徐明华,赵玉洁. "Method for the Synthesis of 1,5-Dioxo-9-oxa-2,4-diazaspiro[5.5]Undec-2-ene-3-thiolate" [P]. 中国发明专利, 专利号 CN 111281449 B, 授权公告日 2020-08-14.
发明人黄志刚,朱建伟,陈志强. "A Process for Preparing High-Purity 1,5-Dioxo-9-oxa-2,4-diazaspiro[5.5]Undec-2-ene-3-thiolate" [P]. 中国发明专利, 专利号 CN 110006831 B, 授权公告日 2016-11-02.
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