发明人郑宇鹏,杨光,朱建伟. "Method for the Synthesis of 4-{[(4-methoxyphenyl)amino]methylidene}-3-methyl-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 115166851 A, 授权公告日 2018-03-06.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2013, 1904, (8), 9615-9623.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2017, 1847, (12), 9297-9321.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-{[(4-methoxyphenyl)amino]methylidene}-3-methyl-4,5-dihydro-1H-pyrazol-5-one Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2010, 195, (8), 1236-1252.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2016, 1128, (11), 3397-3423.