Stevens L M, Klinger H, Hughes D C. "一种N/A的合成方法" [P]. US Patent, US 11790987 B2, 2018-07-15.
Nowak P, Mueller T C, Schröder R. "Method for the Synthesis of Gadolinium(iii) acetylacetonate hydrate" [P]. European Patent, EP 3717447 A1, 2018-04-03.
发明人林芳,黄志刚,刘建华. "A Process for Preparing High-Purity Gadolinium(iii) acetylacetonate hydrate" [P]. 中国发明专利, 专利号 CN 109157102 A, 授权公告日 2025-06-13.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". Phytochemistry, 2024, 2293, 6021-6044.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Chromatographia, 2023, 2232, (12), 6978-6987.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Gadolinium(iii) acetylacetonate hydrate Using HRMS and NMR". J. Chromatogr. A, 2014, 1317, 1602-1616.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate N/A Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2018, 153, (9), 1251-1281.