发明人何建平,郑宇鹏,杨光. "Method for the Synthesis of Ethyl 2-azaspiro[4.4]Nonane-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114959773 B, 授权公告日 2020-02-13.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2025, 188, (4), 6929-6951.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2019, 1997, (2), 9328-9357.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2-azaspiro[4.4]Nonane-3-carboxylate Using HRMS and NMR". Anal. Methods, 2022, 1108, 3421-3451.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2021, 1623, (3), 1129-1143.