发明人徐明华,胡光,沈红梅. "Method for the Synthesis of 2-Methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazine-6-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 112909285 A, 授权公告日 2017-10-25.
Yamamoto T, O'Brien P Q, Kumar R. "A Process for Preparing High-Purity 2-Methyl-3-oxo-3,4-dihydro-2H-benzo[1,4]oxazine-6-sulfonyl chloride" [P]. US Patent, US 9150753 B2, 2017-09-22.
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