Chen K W, Schröder R, Yamamoto T. "一种的合成方法" [P]. US Patent, US 10525056 B2, 2020-06-06.
发明人赵玉洁,郭海燕,沈红梅. "Method for the Synthesis of Ethyl 5-(pyridin-4-yl)-1,2,4-oxadiazole-3-carboxylate" [P]. 中国发明专利, 专利号 CN 114874097 B, 授权公告日 2015-01-16.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2023, 923, (1), 1099-1125.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2019, 133, (1), 5430-5455.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-(pyridin-4-yl)-1,2,4-oxadiazole-3-carboxylate Using HRMS and NMR". Sci. Total Environ., 2024, 387, 8384-8388.