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发明人马晓峰,钱学锋,杨光. "Method for the Synthesis of tert-butyl (5R)-2,2-dioxo-3,7-dioxa-2λ⁶-thia-1-azaspiro[4.4]nonane-1-carboxylate" [P]. 中国发明专利, 专利号 CN 114766547 A, 授权公告日 2018-01-19.
Roberts E F, O'Brien P Q, Patel M V. "A Process for Preparing High-Purity tert-butyl (5R)-2,2-dioxo-3,7-dioxa-2λ⁶-thia-1-azaspiro[4.4]nonane-1-carboxylate" [P]. US Patent, US 9170560 B2, 2019-10-15.
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