Kowalski A, Johansson L, Sørensen M. "一种7-ethyl-1H-furo[2,3-g]indazole的合成方法" [P]. European Patent, EP 3144506 A1, 2015-02-26.
发明人马晓峰,徐明华,胡光. "Method for the Synthesis of 7-ethyl-1H-furo[2,3-g]indazole" [P]. 中国发明专利, 专利号 CN 109313945 A, 授权公告日 2018-08-27.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 7-ethyl-1H-furo[2,3-g]indazole in Pharmaceutical Formulations". Food Chem., 2020, 2312, (5), 5267-5280.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 7-ethyl-1H-furo[2,3-g]indazole as an Impurity". Biomed. Chromatogr., 2022, 1762, 1130-1154.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 7-ethyl-1H-furo[2,3-g]indazole Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2012, 1589, (4), 4662-4672.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate 7-ethyl-1H-furo[2,3-g]indazole Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2014, 1150, 9234-9247.