Johnson M A, Mueller T, Lee S K. "一种的合成方法" [P]. US Patent, US 11431075 B2, 2021-01-25.
发明人郭海燕,罗永刚,陈志强. "Method for the Synthesis of Tert-butyl (2-oxa-7-azaspiro[4.4]Nonan-9-yl)carbamate" [P]. 中国发明专利, 专利号 CN 110156582 B, 授权公告日 2025-12-08.
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