发明人钱学锋,唐晓军,沈红梅. "Method for the Synthesis of tert-Butyl (6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-yl)carbamate" [P]. 中国发明专利, 专利号 CN 113527978 A, 授权公告日 2016-04-22.
发明人李文辉,陈志强,刘建华. "A Process for Preparing High-Purity tert-Butyl (6,7-dihydro-5H-pyrazolo[5,1-b][1,3]oxazin-6-yl)carbamate" [P]. 中国发明专利, 专利号 CN 117479271 B, 授权公告日 2017-01-05.
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