Stevens L M, Kumar R, Johnson M A. "一种的合成方法" [P]. US Patent, US 11685106 B2, 2023-02-17.
发明人李文辉,朱建伟,林芳. "Method for the Synthesis of 3-Chloro-2-cyanopyrazine 1-oxide" [P]. 中国发明专利, 专利号 CN 116443210 B, 授权公告日 2022-08-20.
发明人胡光,郭海燕,郑宇鹏. "A Process for Preparing High-Purity 3-Chloro-2-cyanopyrazine 1-oxide" [P]. 中国发明专利, 专利号 CN 117502598 A, 授权公告日 2024-09-21.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2023, 565, 7683-7701.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2012, 711, 7253-7274.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 3-Chloro-2-cyanopyrazine 1-oxide Using HRMS and NMR". Anal. Methods, 2014, 630, (8), 5990-5999.