发明人李文辉,罗永刚,钱学锋. "Method for the Synthesis of 6-Chloro-5,7-dimethyl-3,4-dihydro-2H-benzo[b][1,4]oxazine" [P]. 中国发明专利, 专利号 CN 117016272 B, 授权公告日 2022-08-13.
发明人罗永刚,韩伟,高志强. "A Process for Preparing High-Purity 6-Chloro-5,7-dimethyl-3,4-dihydro-2H-benzo[b][1,4]oxazine" [P]. 中国发明专利, 专利号 CN 112649861 B, 授权公告日 2015-07-18.
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