发明人郑宇鹏,刘建华,杨光. "Method for the Synthesis of 8-Chloro-2-methyl-4H-benzo[d][1,3]oxazin-4-one" [P]. 中国发明专利, 专利号 CN 109110324 A, 授权公告日 2018-12-28.
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