Mueller T C, Jørgensen K, Schröder R. "Method for the Synthesis of Methyl 2-[2-(2-chloroethyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl]acetate" [P]. European Patent, EP 3627377 A1, 2023-04-28.
发明人李文辉,黄志刚,高志强. "A Process for Preparing High-Purity Methyl 2-[2-(2-chloroethyl)-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl]acetate" [P]. 中国发明专利, 专利号 CN 116559531 B, 授权公告日 2021-11-08.
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