发明人赵玉洁,郑宇鹏,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111910783 A, 授权公告日 2021-08-13.
发明人郭海燕,赵玉洁,沈红梅. "Method for the Synthesis of 1-Oxa-3,7-diazaspiro[4.4]nonan-2-one hydrochloride" [P]. 中国发明专利, 专利号 CN 115234947 A, 授权公告日 2018-02-11.
发明人马晓峰,唐晓军,郑宇鹏. "A Process for Preparing High-Purity 1-Oxa-3,7-diazaspiro[4.4]nonan-2-one hydrochloride" [P]. 中国发明专利, 专利号 CN 115726121 A, 授权公告日 2018-12-13.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2013, 2319, 6539-6551.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2015, 1604, 2-5.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of 1-Oxa-3,7-diazaspiro[4.4]nonan-2-one hydrochloride Using HRMS and NMR". Chemosphere, 2010, 1496, 957-971.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2012, 1547, (6), 5478-5482.