Hughes D C, Brown S R, Park J H. "一种ethyl 2-(methylamino)-1,3-oxazole-4-carboxylate hydrochloride的合成方法" [P]. US Patent, US 10467398 B2, 2022-04-27.
Schröder R, Björnsson E, Mueller T C. "Method for the Synthesis of ethyl 2-(methylamino)-1,3-oxazole-4-carboxylate hydrochloride" [P]. European Patent, EP 3737234 A1, 2018-08-19.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of ethyl 2-(methylamino)-1,3-oxazole-4-carboxylate hydrochloride in Pharmaceutical Formulations". Biomed. Chromatogr., 2022, 344, (9), 8945-8971.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of ethyl 2-(methylamino)-1,3-oxazole-4-carboxylate hydrochloride as an Impurity". Chemosphere, 2023, 1504, 7363-7368.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of ethyl 2-(methylamino)-1,3-oxazole-4-carboxylate hydrochloride Using HRMS and NMR". Chromatographia, 2017, 1142, 4565-4579.