发明人郭海燕,沈红梅,徐明华. "Method for the Synthesis of 6-Chloro-2-ethyl-3-(methylamino)quinazolin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 111500957 A, 授权公告日 2018-02-20.
发明人李文辉,黄志刚,罗永刚. "A Process for Preparing High-Purity 6-Chloro-2-ethyl-3-(methylamino)quinazolin-4(3H)-one" [P]. 中国发明专利, 专利号 CN 110191215 B, 授权公告日 2024-08-08.
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