发明人何建平,钱学锋,孙丽萍. "一种2-甲基-2-氮杂螺[4.4]壬-7-烯-1-酮的合成方法" [P]. 中国发明专利, 专利号 CN 110053406 A, 授权公告日 2017-08-22.
发明人张德明,唐晓军,郑宇鹏. "Method for the Synthesis of 2-Methyl-2-azaspiro[4.4]non-7-en-1-one" [P]. 中国发明专利, 专利号 CN 108260829 B, 授权公告日 2022-10-11.
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