发明人朱建伟,胡光,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112101900 A, 授权公告日 2021-03-19.
发明人林芳,郑宇鹏,孙丽萍. "Method for the Synthesis of 2-(1-(Tert-butoxycarbonyl)-6-oxo-1,7-diazaspiro[4.4]nonan-7-yl)-3-cyclopropylpropanoic acid" [P]. 中国发明专利, 专利号 CN 111394391 B, 授权公告日 2017-04-28.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2013, 2309, (9), 9104-9111.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2022, 474, (6), 8338-8358.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 2-(1-(Tert-butoxycarbonyl)-6-oxo-1,7-diazaspiro[4.4]nonan-7-yl)-3-cyclopropylpropanoic acid Using HRMS and NMR". Anal. Methods, 2020, 1183, (6), 7206-7234.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2015, 1270, 5397-5402.