发明人黄志刚,刘建华,徐明华. "Method for the Synthesis of 3-Oxo-3,4-dihydro-2h-benzo[b][1,4]oxazine-6-sulfonamide" [P]. 中国发明专利, 专利号 CN 108868213 B, 授权公告日 2017-04-22.
发明人赵玉洁,冯建国,李文辉. "A Process for Preparing High-Purity 3-Oxo-3,4-dihydro-2h-benzo[b][1,4]oxazine-6-sulfonamide" [P]. 中国发明专利, 专利号 CN 110244141 A, 授权公告日 2025-05-03.
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