Schröder R, Stevens L M, Anderson J P. "一种非那西丁杂质5的合成方法" [P]. US Patent, US 9183976 B2, 2016-02-26.
发明人徐明华,刘建华,郭海燕. "Method for the Synthesis of Phenacetin Impurity 5" [P]. 中国发明专利, 专利号 CN 108102727 B, 授权公告日 2024-05-17.
Martínez F, Nielsen H, Mueller T C. "A Process for Preparing High-Purity Phenacetin Impurity 5" [P]. European Patent, EP 3562572 A1, 2025-10-08.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 非那西丁杂质5 in Pharmaceutical Formulations". J. Chromatogr. A, 2019, 2266, 2326-2356.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 非那西丁杂质5 as an Impurity". Anal. Chem., 2020, 1224, (12), 5509-5529.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of Phenacetin Impurity 5 Using HRMS and NMR". Environ. Sci. Technol., 2017, 1083, 415-444.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate 非那西丁杂质5 Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2022, 335, (7), 8596-8626.