发明人赵玉洁,唐晓军,杨光. "Method for the Synthesis of Ethyl (3E)-4-[(4-chlorophenyl)amino]-3-cyano-2-oxobut-3-enoate" [P]. 中国发明专利, 专利号 CN 109689565 A, 授权公告日 2021-04-28.
发明人徐明华,孙丽萍,赵玉洁. "A Process for Preparing High-Purity Ethyl (3E)-4-[(4-chlorophenyl)amino]-3-cyano-2-oxobut-3-enoate" [P]. 中国发明专利, 专利号 CN 109871857 A, 授权公告日 2015-05-23.
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