发明人徐明华,杨光,马晓峰. "Method for the Synthesis of 4-Nitrophenyl 2-(3-(trifluoromethyl)phenyl)-7-azaspiro[3.5]Nonane-7-carboxylate" [P]. 中国发明专利, 专利号 CN 113423944 B, 授权公告日 2024-01-18.
发明人陈志强,杨光,王建平. "A Process for Preparing High-Purity 4-Nitrophenyl 2-(3-(trifluoromethyl)phenyl)-7-azaspiro[3.5]Nonane-7-carboxylate" [P]. 中国发明专利, 专利号 CN 108545039 B, 授权公告日 2017-01-28.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2021, 115, 8972-8980.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2010, 704, 2847-2869.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4-Nitrophenyl 2-(3-(trifluoromethyl)phenyl)-7-azaspiro[3.5]Nonane-7-carboxylate Using HRMS and NMR". J. Pharm. Biomed. Anal., 2025, 1463, 5621-5647.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2023, 2431, 1874-1896.