发明人徐明华,杨光,黄志刚. "Method for the Synthesis of 2-(6-Chloropyridin-3-yl)-7-oxa-1,3-diazaspiro[4.4]Non-1-en-4-one" [P]. 中国发明专利, 专利号 CN 116962854 A, 授权公告日 2023-05-25.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2012, 425, (2), 2218-2239.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2011, 156, 5845-5867.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 2-(6-Chloropyridin-3-yl)-7-oxa-1,3-diazaspiro[4.4]Non-1-en-4-one Using HRMS and NMR". J. Sep. Sci., 2019, 2146, (12), 233-238.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2019, 171, 1038-1056.