Brown S R, Chen K W, Fischer A B. "一种吡格列酮杂质14的合成方法" [P]. US Patent, US 10058761 B2, 2021-01-19.
Roberts E F, Stevens L M, Yamamoto T. "Method for the Synthesis of Pioglitazone Impurity 14" [P]. US Patent, US 10452485 B2, 2020-04-10.
Thompson G K, Chen K W, Schröder R. "A Process for Preparing High-Purity Pioglitazone Impurity 14" [P]. US Patent, US 10904571 B2, 2020-01-21.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 吡格列酮杂质14 in Pharmaceutical Formulations". Chromatographia, 2010, 1298, (7), 426-448.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 吡格列酮杂质14 as an Impurity". Sci. Total Environ., 2022, 134, 4102-4116.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Pioglitazone Impurity 14 Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2023, 1580, (7), 909-925.