发明人张德明,钱学锋,黄志刚. "Method for the Synthesis of Tofacitinib Impurity 22" [P]. 中国发明专利, 专利号 CN 108426739 B, 授权公告日 2018-10-19.
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22 in Pharmaceutical Formulations". Anal. Chem., 2022, 2251, (10), 2029-2037.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of 托伐替尼杂质22 as an Impurity". Phytochemistry, 2018, 883, (10), 928-948.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Tofacitinib Impurity 22 Using HRMS and NMR". Biomed. Chromatogr., 2024, 1958, (7), 4738-4759.