Klinger H, Davis P L, Johnson M A. "一种的合成方法" [P]. US Patent, US 9523644 B2, 2015-05-16.
Yamamoto T, Schröder R, Lee S K. "Method for the Synthesis of 2-(5-Amino-2-chlorophenyl)-2-azaspiro[4.4]nonane-1,3-dione" [P]. US Patent, US 9610167 B2, 2025-01-19.
发明人钱学锋,孙丽萍,张德明. "A Process for Preparing High-Purity 2-(5-Amino-2-chlorophenyl)-2-azaspiro[4.4]nonane-1,3-dione" [P]. 中国发明专利, 专利号 CN 110003320 A, 授权公告日 2020-10-21.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2011, 1843, 7340-7367.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2023, 714, (3), 3950-3980.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 2-(5-Amino-2-chlorophenyl)-2-azaspiro[4.4]nonane-1,3-dione Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2020, 861, 4034-4046.