发明人徐明华,郑宇鹏,李文辉. "Method for the Synthesis of 5-Chloro-7-methyl-2,3-dihydro-1,3-benzoxazol-2-one" [P]. 中国发明专利, 专利号 CN 115086721 B, 授权公告日 2021-05-14.
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