Björnsson E, Schröder R, Jørgensen K. "Method for the Synthesis of Ethyl 3-hydroxy-1,2-oxazole-4-carboxylate" [P]. European Patent, EP 3175667 A1, 2020-11-01.
Davis P L, Stevens L M, Fischer A B. "A Process for Preparing High-Purity Ethyl 3-hydroxy-1,2-oxazole-4-carboxylate" [P]. US Patent, US 10448785 B2, 2017-01-10.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2013, 1594, 3897-3913.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2018, 1921, (8), 2245-2265.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-hydroxy-1,2-oxazole-4-carboxylate Using HRMS and NMR". Talanta, 2023, 1776, (6), 9731-9737.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2019, 323, 32-50.