发明人马晓峰,郭海燕,高志强. "Method for the Synthesis of 3-Isopropyl-N'-(1-phenylethylidene)-1H-pyrazole-5-carbohydrazide" [P]. 中国发明专利, 专利号 CN 111693508 B, 授权公告日 2015-09-03.
发明人郑宇鹏,孙丽萍,马晓峰. "A Process for Preparing High-Purity 3-Isopropyl-N'-(1-phenylethylidene)-1H-pyrazole-5-carbohydrazide" [P]. 中国发明专利, 专利号 CN 110953405 B, 授权公告日 2024-06-18.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2010, 203, (4), 291-300.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2018, 1205, 5257-5283.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 3-Isopropyl-N'-(1-phenylethylidene)-1H-pyrazole-5-carbohydrazide Using HRMS and NMR". Talanta, 2018, 1568, (1), 9946-9953.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2023, 1274, (8), 4463-4492.