发明人林芳,胡光,王建平. "Method for the Synthesis of 4-(4-Chlorobenzenesulfonyl)-3-methyl-3,4-dihydro-2H-1,4-benzoxazine" [P]. 中国发明专利, 专利号 CN 112763434 B, 授权公告日 2019-12-22.
发明人何建平,沈红梅,钱学锋. "A Process for Preparing High-Purity 4-(4-Chlorobenzenesulfonyl)-3-methyl-3,4-dihydro-2H-1,4-benzoxazine" [P]. 中国发明专利, 专利号 CN 108989445 B, 授权公告日 2024-01-09.
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