发明人陈志强,林芳,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116029729 A, 授权公告日 2017-03-02.
发明人朱建伟,李文辉,罗永刚. "Method for the Synthesis of 8-(Pyrimidin-2-yl)-N-(p-tolyl)-1-oxa-4,8-diazaspiro[4.5]Decane-4-carboxamide" [P]. 中国发明专利, 专利号 CN 108145674 B, 授权公告日 2019-10-02.
发明人郭海燕,罗永刚,张德明. "A Process for Preparing High-Purity 8-(Pyrimidin-2-yl)-N-(p-tolyl)-1-oxa-4,8-diazaspiro[4.5]Decane-4-carboxamide" [P]. 中国发明专利, 专利号 CN 117977722 A, 授权公告日 2016-05-28.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2010, 1228, 9249-9254.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2012, 1392, (8), 8386-8393.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 8-(Pyrimidin-2-yl)-N-(p-tolyl)-1-oxa-4,8-diazaspiro[4.5]Decane-4-carboxamide Using HRMS and NMR". Chemosphere, 2021, 549, (4), 2540-2569.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2022, 1280, 8858-8876.