发明人高志强,林芳,周伟. "Method for the Synthesis of 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 115102254 B, 授权公告日 2015-06-21.
发明人朱建伟,刘建华,唐晓军. "A Process for Preparing High-Purity 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbonitrile" [P]. 中国发明专利, 专利号 CN 109655657 A, 授权公告日 2017-02-02.
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