发明人郭海燕,冯建国,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115334825 A, 授权公告日 2018-07-15.
发明人王建平,唐晓军,张德明. "Method for the Synthesis of 1-(2-Cyanoethyl)-5-nitro-2-oxo-1,2-dihydropyridine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113025098 A, 授权公告日 2017-08-08.
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