发明人钱学锋,林芳,冯建国. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109816578 A, 授权公告日 2023-07-14.
发明人徐明华,黄志刚,郭海燕. "Method for the Synthesis of 2-(2-Oxo-2,3-dihydro-1h-indol-3-ylidene)acetonitrile" [P]. 中国发明专利, 专利号 CN 111271640 B, 授权公告日 2024-02-19.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2018, 92, (2), 2613-2618.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2016, 846, (1), 4152-4161.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-(2-Oxo-2,3-dihydro-1h-indol-3-ylidene)acetonitrile Using HRMS and NMR". Biomed. Chromatogr., 2015, 1611, (4), 6644-6670.