发明人何建平,黄志刚,孙丽萍. "Method for the Synthesis of 2-(Tert-butoxycarbonyl)-6-thia-2-azaspiro[3.4]Octane-8-carboxylic acid 6,6-dioxide" [P]. 中国发明专利, 专利号 CN 112334473 A, 授权公告日 2021-11-14.
发明人李文辉,张德明,罗永刚. "A Process for Preparing High-Purity 2-(Tert-butoxycarbonyl)-6-thia-2-azaspiro[3.4]Octane-8-carboxylic acid 6,6-dioxide" [P]. 中国发明专利, 专利号 CN 116568478 B, 授权公告日 2020-10-02.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2012, 1317, (4), 3564-3575.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2010, 433, (8), 4437-4466.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Tert-butoxycarbonyl)-6-thia-2-azaspiro[3.4]Octane-8-carboxylic acid 6,6-dioxide Using HRMS and NMR". Anal. Chim. Acta, 2012, 250, (8), 1122-1142.