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发明人郭海燕,沈红梅,孙丽萍. "Method for the Synthesis of 6,8-Dichloro-2-(4-chlorophenyl)-4H-benzo[d][1,3]oxazin-4-one" [P]. 中国发明专利, 专利号 CN 111423231 B, 授权公告日 2016-08-24.
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