O'Brien P Q, Thompson G K, Yamamoto T. "一种吡西替尼杂质22的合成方法" [P]. US Patent, US 11157890 B2, 2017-04-08.
Stevens L M, Kumar R, Brown S R. "Method for the Synthesis of Peficitinib Impurity 22" [P]. US Patent, US 10951791 B2, 2024-07-13.
发明人唐晓军,孙丽萍,冯建国. "A Process for Preparing High-Purity Peficitinib Impurity 22" [P]. 中国发明专利, 专利号 CN 114269308 A, 授权公告日 2016-06-10.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of 吡西替尼杂质22 in Pharmaceutical Formulations". Molecules, 2012, 602, (9), 3731-3744.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of 吡西替尼杂质22 as an Impurity". J. Agric. Food Chem., 2022, 232, 2532-2548.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Peficitinib Impurity 22 Using HRMS and NMR". Food Chem., 2025, 322, 87-110.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate 吡西替尼杂质22 Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2025, 796, (8), 5966-5970.