发明人高志强,刘建华,钱学锋. "Method for the Synthesis of 1,3-Bis(2-methoxypyridin-3-yl)urea" [P]. 中国发明专利, 专利号 CN 109678496 A, 授权公告日 2022-07-12.
发明人唐晓军,朱建伟,孙丽萍. "A Process for Preparing High-Purity 1,3-Bis(2-methoxypyridin-3-yl)urea" [P]. 中国发明专利, 专利号 CN 109729643 A, 授权公告日 2018-03-12.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2022, 1170, 5092-5120.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2013, 2196, (3), 4421-4443.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 1,3-Bis(2-methoxypyridin-3-yl)urea Using HRMS and NMR". Chemosphere, 2022, 2162, (9), 7884-7914.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2018, 2273, (3), 1923-1950.