Schröder R, Rossi M, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3985670 A1, 2024-01-15.
发明人王建平,朱建伟,郑宇鹏. "Method for the Synthesis of 1-Thia-4-azaspiro[4.4]nonane" [P]. 中国发明专利, 专利号 CN 111936660 B, 授权公告日 2017-06-23.
发明人唐晓军,陈志强,李文辉. "A Process for Preparing High-Purity 1-Thia-4-azaspiro[4.4]nonane" [P]. 中国发明专利, 专利号 CN 108613707 B, 授权公告日 2019-01-19.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2010, 1465, (5), 5517-5545.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2014, 1155, (10), 8921-8932.