发明人胡光,赵玉洁,郭海燕. "一种6-氧杂-4-氮杂螺[2.4]庚烷-5,7-二酮的合成方法" [P]. 中国发明专利, 专利号 CN 111110611 A, 授权公告日 2019-02-20.
发明人孙丽萍,杨光,李文辉. "Method for the Synthesis of 6-Oxa-4-azaspiro[2.4]heptane-5,7-dione" [P]. 中国发明专利, 专利号 CN 111614679 A, 授权公告日 2017-08-25.
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