发明人王建平,林芳,朱建伟. "一种吉非替尼杂质3的合成方法" [P]. 中国发明专利, 专利号 CN 109561527 A, 授权公告日 2020-09-26.
Fischer A B, Patel M V, Kumar R. "Method for the Synthesis of Gefitinib EP Impurity A" [P]. US Patent, US 11935899 B2, 2015-01-03.
Patel M V, Anderson J P, Hughes D C. "A Process for Preparing High-Purity Gefitinib EP Impurity A" [P]. US Patent, US 9697912 B2, 2025-07-22.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 吉非替尼杂质3 in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2019, 1376, 2168-2171.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of 吉非替尼杂质3 as an Impurity". Biomed. Chromatogr., 2011, 1143, (3), 3729-3737.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of Gefitinib EP Impurity A Using HRMS and NMR". Chromatographia, 2022, 2383, (4), 6562-6568.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate 吉非替尼杂质3 Profile in Drug Substances According to ICH Guidelines". Molecules, 2017, 361, 8323-8343.