发明人张德明,王建平,陈志强. "Method for the Synthesis of Tofacitinib Impurity N48" [P]. 中国发明专利, 专利号 CN 116539560 B, 授权公告日 2015-08-18.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of 托法替布杂质N48 in Pharmaceutical Formulations". Anal. Chim. Acta, 2022, 2391, 3047-3050.
Garcia M, Rodriguez P. "A Stability-Indicating HPLC Method for the Separation and Quantification of 托法替布杂质N48 as an Impurity". Sci. Total Environ., 2013, 243, 5480-5486.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Tofacitinib Impurity N48 Using HRMS and NMR". Phytochemistry, 2014, 1079, (12), 713-723.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate 托法替布杂质N48 Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2013, 1829, (2), 505-525.