发明人高志强,赵玉洁,孙丽萍. "Method for the Synthesis of Tert-butyl 1-((thiophen-3-ylmethyl)amino)-6-azaspiro[2.5]Octane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 110190568 B, 授权公告日 2017-11-27.
发明人赵玉洁,杨光,罗永刚. "A Process for Preparing High-Purity Tert-butyl 1-((thiophen-3-ylmethyl)amino)-6-azaspiro[2.5]Octane-6-carboxylate" [P]. 中国发明专利, 专利号 CN 113588255 A, 授权公告日 2019-04-04.
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