Nowak P, Nielsen H, Schröder R. "一种托伐替尼杂质6的合成方法" [P]. European Patent, EP 3878418 A1, 2018-06-12.
发明人黄志刚,高志强,陈志强. "Method for the Synthesis of Tofacitinib Impurity 6" [P]. 中国发明专利, 专利号 CN 115333538 A, 授权公告日 2017-09-15.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of 托伐替尼杂质6 in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2013, 544, 31-36.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 托伐替尼杂质6 as an Impurity". J. Chromatogr. A, 2019, 631, (2), 8937-8950.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Tofacitinib Impurity 6 Using HRMS and NMR". Phytochemistry, 2016, 1253, 7542-7570.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate 托伐替尼杂质6 Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2015, 1684, 8971-8989.