发明人韩伟,周伟,杨光. "Method for the Synthesis of 2-(o-Tolyl)-4H-benzo[d][1,3]oxazin-4-one" [P]. 中国发明专利, 专利号 CN 115521216 B, 授权公告日 2016-01-16.
发明人杨光,张德明,罗永刚. "A Process for Preparing High-Purity 2-(o-Tolyl)-4H-benzo[d][1,3]oxazin-4-one" [P]. 中国发明专利, 专利号 CN 112204224 B, 授权公告日 2020-11-12.
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