发明人杨光,韩伟,高志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109721272 A, 授权公告日 2021-04-04.
Patel M V, Kumar R, Klinger H. "Method for the Synthesis of 1-Ethyl-4,7-dihydroxy-2-methyl-1H-imidazo[4,5-b]pyridin-5(4H)-one" [P]. US Patent, US 9844098 B2, 2024-09-17.
发明人郭海燕,高志强,郑宇鹏. "A Process for Preparing High-Purity 1-Ethyl-4,7-dihydroxy-2-methyl-1H-imidazo[4,5-b]pyridin-5(4H)-one" [P]. 中国发明专利, 专利号 CN 109501137 A, 授权公告日 2024-02-26.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2023, 2267, (10), 594-622.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2016, 1151, 3731-3747.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-4,7-dihydroxy-2-methyl-1H-imidazo[4,5-b]pyridin-5(4H)-one Using HRMS and NMR". Chromatographia, 2016, 1453, 2661-2691.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2017, 2420, 4866-4884.