O'Brien P Q, Lee S K, Hughes D C. "一种的合成方法" [P]. US Patent, US 10361380 B2, 2019-05-01.
发明人郭海燕,杨光,黄志刚. "Method for the Synthesis of 5-Amino-3-cyclopentyl-1-methyl-1H-pyrazole-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 112582551 B, 授权公告日 2024-01-09.
发明人郭海燕,杨光,郑宇鹏. "A Process for Preparing High-Purity 5-Amino-3-cyclopentyl-1-methyl-1H-pyrazole-4-carbonitrile" [P]. 中国发明专利, 专利号 CN 111162640 A, 授权公告日 2022-10-05.
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". J. Agric. Food Chem., 2014, 1528, (1), 6567-6577.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2014, 977, (7), 9545-9572.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 5-Amino-3-cyclopentyl-1-methyl-1H-pyrazole-4-carbonitrile Using HRMS and NMR". Biomed. Chromatogr., 2014, 2211, 3849-3864.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2019, 2027, (9), 1958-1985.