发明人罗永刚,刘建华,何建平. "Method for the Synthesis of 3,4-Dihydro-2H-benzo[b][1,4]oxazine-6-carbaldehyde" [P]. 中国发明专利, 专利号 CN 113043294 B, 授权公告日 2020-07-09.
发明人李文辉,赵玉洁,高志强. "A Process for Preparing High-Purity 3,4-Dihydro-2H-benzo[b][1,4]oxazine-6-carbaldehyde" [P]. 中国发明专利, 专利号 CN 112634292 A, 授权公告日 2018-10-07.
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