发明人孙丽萍,朱建伟,钱学锋. "Method for the Synthesis of 3-(m-Tolylamino)-1h-pyrazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 111425385 A, 授权公告日 2024-12-09.
发明人郑宇鹏,张德明,周伟. "A Process for Preparing High-Purity 3-(m-Tolylamino)-1h-pyrazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 109074164 B, 授权公告日 2020-03-28.
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". J. Sep. Sci., 2013, 1672, 1150-1173.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2020, 1304, 5931-5956.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 3-(m-Tolylamino)-1h-pyrazol-5(4H)-one Using HRMS and NMR". Biomed. Chromatogr., 2013, 864, 8868-8881.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2014, 728, 4402-4416.