发明人冯建国,王建平,李文辉. "Method for the Synthesis of 4-ethynyloxazole" [P]. 中国发明专利, 专利号 CN 117955954 B, 授权公告日 2017-01-19.
发明人郑宇鹏,马晓峰,胡光. "A Process for Preparing High-Purity 4-ethynyloxazole" [P]. 中国发明专利, 专利号 CN 113201028 A, 授权公告日 2023-03-26.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2013, 1623, 1356-1383.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2021, 1226, (4), 2401-2416.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-ethynyloxazole Using HRMS and NMR". Chemosphere, 2021, 1662, 2891-2897.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2014, 1116, (1), 9374-9396.