发明人郭海燕,李文辉,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113432809 A, 授权公告日 2018-03-24.
Hughes D C, Klinger H, Williams B T. "Method for the Synthesis of 1-(cyclopropylamino)cyclobutane-1-carbonitrile" [P]. US Patent, US 9109944 B2, 2018-07-01.
发明人马晓峰,何建平,钱学锋. "A Process for Preparing High-Purity 1-(cyclopropylamino)cyclobutane-1-carbonitrile" [P]. 中国发明专利, 专利号 CN 112172197 A, 授权公告日 2020-04-15.
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". Chemosphere, 2019, 2427, 5723-5751.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2017, 687, 4452-4478.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 1-(cyclopropylamino)cyclobutane-1-carbonitrile Using HRMS and NMR". Anal. Chem., 2018, 299, (6), 7656-7682.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2010, 2079, (4), 2845-2859.