发明人李文辉,黄志刚,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112301168 A, 授权公告日 2016-03-01.
发明人沈红梅,李文辉,何建平. "Method for the Synthesis of 3-(2-Methoxyphenyl)-1-methyl-1,4,7-triazaspiro[4.4]non-3-en-2-one" [P]. 中国发明专利, 专利号 CN 115090077 B, 授权公告日 2018-10-07.
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