发明人赵玉洁,何建平,杨光. "Method for the Synthesis of (2,7-Dimethyl-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 108595729 B, 授权公告日 2015-09-24.
Björnsson E, Kowalski A, Nowak P. "A Process for Preparing High-Purity (2,7-Dimethyl-3-oxo-2,3-dihydro-4H-1,4-benzoxazin-4-yl)acetic acid" [P]. European Patent, EP 3607005 A1, 2025-04-01.
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