发明人何建平,林芳,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114905409 A, 授权公告日 2024-10-12.
发明人黄志刚,郭海燕,何建平. "Method for the Synthesis of 5'h,7'h-Spiro[cyclobutane-1,6'-pyrazolo[5,1-b][1,3]oxazin]-3'-amine hydrochloride" [P]. 中国发明专利, 专利号 CN 117040427 B, 授权公告日 2021-03-18.
发明人王建平,郭海燕,刘建华. "A Process for Preparing High-Purity 5'h,7'h-Spiro[cyclobutane-1,6'-pyrazolo[5,1-b][1,3]oxazin]-3'-amine hydrochloride" [P]. 中国发明专利, 专利号 CN 115664992 B, 授权公告日 2015-03-20.
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