发明人张德明,王建平,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116954576 A, 授权公告日 2020-10-06.
发明人张德明,胡光,沈红梅. "Method for the Synthesis of N-(4-Methylphenylsulfonyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one" [P]. 中国发明专利, 专利号 CN 112152552 B, 授权公告日 2024-05-05.
发明人黄志刚,唐晓军,周伟. "A Process for Preparing High-Purity N-(4-Methylphenylsulfonyl)-1,4-dihydro-2H-3,1-benzoxazin-2-one" [P]. 中国发明专利, 专利号 CN 111000514 B, 授权公告日 2017-04-19.
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