Kowalski A, Jørgensen K, Björnsson E. "一种tert-butyl 3-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]morpholine-4-carboxylate的合成方法" [P]. European Patent, EP 3808405 A1, 2017-02-09.
发明人郭海燕,罗永刚,沈红梅. "Method for the Synthesis of tert-butyl 3-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]morpholine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 114069141 B, 授权公告日 2022-04-01.
Björnsson E, Schröder R, Nowak P. "A Process for Preparing High-Purity tert-butyl 3-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]morpholine-4-carboxylate" [P]. European Patent, EP 3932958 A1, 2025-11-07.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of tert-butyl 3-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]morpholine-4-carboxylate in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2025, 1731, 8592-8619.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of tert-butyl 3-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]morpholine-4-carboxylate as an Impurity". Anal. Chem., 2013, 352, (2), 6490-6502.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of tert-butyl 3-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]morpholine-4-carboxylate Using HRMS and NMR". Food Chem., 2013, 809, (5), 9893-9916.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate tert-butyl 3-[3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl]morpholine-4-carboxylate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2025, 1429, 5019-5038.