发明人郑宇鹏,徐明华,张德明. "Method for the Synthesis of N1-((1,4-Dioxaspiro[4.4]nonan-2-yl)methyl)-N2-isopropyloxalamide" [P]. 中国发明专利, 专利号 CN 108352209 B, 授权公告日 2022-04-27.
发明人胡光,冯建国,马晓峰. "A Process for Preparing High-Purity N1-((1,4-Dioxaspiro[4.4]nonan-2-yl)methyl)-N2-isopropyloxalamide" [P]. 中国发明专利, 专利号 CN 113540294 B, 授权公告日 2018-08-19.
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". Molecules, 2013, 1836, 3018-3032.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2015, 2162, 4916-4933.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of N1-((1,4-Dioxaspiro[4.4]nonan-2-yl)methyl)-N2-isopropyloxalamide Using HRMS and NMR". Biomed. Chromatogr., 2022, 1741, 3719-3730.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2018, 961, (7), 5611-5641.