Stevens L M, Thompson G K, Hughes D C. "Method for the Synthesis of 1-(2-Fluorophenyl)-3-{1-[3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea" [P]. US Patent, US 9067634 B2, 2024-09-26.
发明人胡光,王建平,杨光. "A Process for Preparing High-Purity 1-(2-Fluorophenyl)-3-{1-[3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea" [P]. 中国发明专利, 专利号 CN 109866967 A, 授权公告日 2015-02-14.
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". Biomed. Chromatogr., 2024, 1349, 9223-9250.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2010, 2131, (11), 4574-4604.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 1-(2-Fluorophenyl)-3-{1-[3-(pyrazin-2-yl)-1,2,4-oxadiazol-5-yl]cyclohexyl}urea Using HRMS and NMR". Anal. Chem., 2015, 1999, (7), 4040-4068.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2015, 1427, (1), 7328-7342.