发明人郭海燕,朱建伟,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 113554338 A, 授权公告日 2016-10-20.
Jørgensen K, Mueller T C, Rossi M. "Method for the Synthesis of tert-Butyl 2-cyclopentyl-6,7-dihydro-2H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate" [P]. European Patent, EP 3065909 A1, 2021-12-23.
发明人胡光,钱学锋,王建平. "A Process for Preparing High-Purity tert-Butyl 2-cyclopentyl-6,7-dihydro-2H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate" [P]. 中国发明专利, 专利号 CN 108086738 A, 授权公告日 2015-10-18.
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". Biomed. Chromatogr., 2021, 1539, (3), 8430-8453.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2022, 922, (2), 5498-5527.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 2-cyclopentyl-6,7-dihydro-2H-pyrazolo[4,3-c]pyridine-5(4H)-carboxylate Using HRMS and NMR". J. Chromatogr. A, 2014, 2353, 1077-1087.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2016, 1692, 976-987.