Stevens L M, Williams B T, Klinger H. "一种的合成方法" [P]. US Patent, US 9768778 B2, 2020-06-28.
发明人唐晓军,胡光,钱学锋. "Method for the Synthesis of 1-(4-Aminophenyl)-4,4-dimethylpyrazolidin-3-one" [P]. 中国发明专利, 专利号 CN 112112007 B, 授权公告日 2019-11-07.
发明人郭海燕,沈红梅,杨光. "A Process for Preparing High-Purity 1-(4-Aminophenyl)-4,4-dimethylpyrazolidin-3-one" [P]. 中国发明专利, 专利号 CN 114188049 B, 授权公告日 2015-10-20.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2018, 2318, (9), 8623-8641.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Sci. Total Environ., 2024, 1788, 365-371.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 1-(4-Aminophenyl)-4,4-dimethylpyrazolidin-3-one Using HRMS and NMR". J. Pharm. Biomed. Anal., 2025, 2109, (6), 1486-1493.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2018, 1176, (3), 4866-4896.