发明人罗永刚,何建平,李文辉. "Method for the Synthesis of 1-Tosyl-6-oxa-1-azaspiro[2.5]Octane" [P]. 中国发明专利, 专利号 CN 114508966 B, 授权公告日 2021-12-26.
发明人罗永刚,刘建华,沈红梅. "A Process for Preparing High-Purity 1-Tosyl-6-oxa-1-azaspiro[2.5]Octane" [P]. 中国发明专利, 专利号 CN 113894562 B, 授权公告日 2019-10-01.
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