发明人徐明华,杨光,何建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110722251 A, 授权公告日 2016-09-20.
发明人林芳,马晓峰,冯建国. "Method for the Synthesis of 4H-Pyrazolo[1,5-a]benzimidazole-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 109235411 B, 授权公告日 2021-02-12.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2023, 759, (1), 9536-9557.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2019, 1321, 8446-8457.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4H-Pyrazolo[1,5-a]benzimidazole-3-carbonitrile Using HRMS and NMR". Chemosphere, 2021, 1250, (7), 8734-8751.