发明人朱建伟,钱学锋,刘建华. "Method for the Synthesis of tert-Butyl (S)-(9-chloro-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)carbamate" [P]. 中国发明专利, 专利号 CN 111644853 A, 授权公告日 2018-05-01.
发明人郭海燕,孙丽萍,沈红梅. "A Process for Preparing High-Purity tert-Butyl (S)-(9-chloro-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)carbamate" [P]. 中国发明专利, 专利号 CN 111537790 B, 授权公告日 2017-07-07.
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