发明人黄志刚,马晓峰,唐晓军. "Method for the Synthesis of Ethyl 1-(2-cyanoethyl)-1H-indazole-5-carboxylate" [P]. 中国发明专利, 专利号 CN 111435351 A, 授权公告日 2023-10-27.
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". Environ. Sci. Technol., 2010, 1751, 5848-5870.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2022, 1619, 2253-2263.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 1-(2-cyanoethyl)-1H-indazole-5-carboxylate Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2010, 303, (6), 2646-2669.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2024, 1749, (6), 5037-5066.