发明人张德明,林芳,钱学锋. "Method for the Synthesis of Ethyl 2,4-dimethoxybenzylidenecarbamate" [P]. 中国发明专利, 专利号 CN 113470620 B, 授权公告日 2015-01-27.
发明人王建平,钱学锋,朱建伟. "A Process for Preparing High-Purity Ethyl 2,4-dimethoxybenzylidenecarbamate" [P]. 中国发明专利, 专利号 CN 108495694 A, 授权公告日 2015-03-19.
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