发明人朱建伟,高志强,韩伟. "Method for the Synthesis of 2-(2-Ethyl-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 114485578 A, 授权公告日 2015-10-07.
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