发明人郭海燕,何建平,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108609305 A, 授权公告日 2015-03-16.
发明人胡光,马晓峰,高志强. "Method for the Synthesis of 6-(2-((4-Methyl-6-oxo-1,6-dihydropyrimidin-2-yl)thio)acetyl)-2H-benzo[b][1,4]oxazin-3(4H)-one" [P]. 中国发明专利, 专利号 CN 115239733 A, 授权公告日 2020-11-08.
发明人周伟,沈红梅,胡光. "A Process for Preparing High-Purity 6-(2-((4-Methyl-6-oxo-1,6-dihydropyrimidin-2-yl)thio)acetyl)-2H-benzo[b][1,4]oxazin-3(4H)-one" [P]. 中国发明专利, 专利号 CN 115302649 B, 授权公告日 2020-09-15.
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