发明人陈志强,冯建国,徐明华. "一种N/A的合成方法" [P]. 中国发明专利, 专利号 CN 114431538 A, 授权公告日 2018-05-10.
Chen K W, Davis P L, Johnson M A. "Method for the Synthesis of 2-(o-Tolylamino)quinoline-4-carbohydrazide" [P]. US Patent, US 11708409 B2, 2024-03-11.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of N/A in Pharmaceutical Formulations". Chemosphere, 2015, 398, 7834-7841.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of N/A as an Impurity". Phytochemistry, 2025, 2286, (10), 5053-5058.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-(o-Tolylamino)quinoline-4-carbohydrazide Using HRMS and NMR". Food Chem., 2012, 1861, 384-390.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate N/A Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2012, 1846, (12), 9636-9642.