Anderson J P, Johnson M A, Williams B T. "Method for the Synthesis of 2-(Benzo[d]oxazol-2-ylthio)-1-(3-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethan-1-one" [P]. US Patent, US 9079136 B2, 2019-07-22.
发明人张德明,韩伟,冯建国. "A Process for Preparing High-Purity 2-(Benzo[d]oxazol-2-ylthio)-1-(3-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethan-1-one" [P]. 中国发明专利, 专利号 CN 114788210 A, 授权公告日 2025-04-26.
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". Environ. Sci. Technol., 2013, 364, (9), 4042-4046.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2018, 2374, (10), 1533-1551.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Benzo[d]oxazol-2-ylthio)-1-(3-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)azetidin-1-yl)ethan-1-one Using HRMS and NMR". Anal. Chem., 2017, 738, (2), 1144-1164.