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发明人郑宇鹏,赵玉洁,杨光. "Method for the Synthesis of 7-Fluoro-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 110157043 A, 授权公告日 2017-01-13.
发明人徐明华,何建平,李文辉. "A Process for Preparing High-Purity 7-Fluoro-3-methyl-2-oxo-2,3-dihydrobenzo[d]oxazole-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 109879728 A, 授权公告日 2019-09-18.
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