发明人沈红梅,刘建华,张德明. "Method for the Synthesis of N-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)prop-2-enamide" [P]. 中国发明专利, 专利号 CN 113028724 B, 授权公告日 2015-11-04.
发明人徐明华,李文辉,郭海燕. "A Process for Preparing High-Purity N-(3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)prop-2-enamide" [P]. 中国发明专利, 专利号 CN 108556788 B, 授权公告日 2016-11-15.
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