Johansson L, Jørgensen K, Kowalski A. "Method for the Synthesis of 5-(2,5-Dimethoxyphenyl)-1,3,4-oxadiazol-2-amine" [P]. European Patent, EP 3931882 A1, 2019-03-15.
Björnsson E, Nielsen H, Schröder R. "A Process for Preparing High-Purity 5-(2,5-Dimethoxyphenyl)-1,3,4-oxadiazol-2-amine" [P]. European Patent, EP 3596462 A1, 2015-01-02.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2015, 2031, 7165-7172.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2019, 113, (2), 7670-7680.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 5-(2,5-Dimethoxyphenyl)-1,3,4-oxadiazol-2-amine Using HRMS and NMR". J. Pharm. Biomed. Anal., 2022, 1280, (3), 2645-2661.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2025, 1485, 7091-7112.