O'Brien P Q, Johnson M A, Davis P L. "Method for the Synthesis of 2-(6-Bromo-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile" [P]. US Patent, US 9178231 B2, 2019-05-04.
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". Chromatographia, 2018, 1871, 5200-5220.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2019, 2233, (5), 8098-8128.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-(6-Bromo-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile Using HRMS and NMR". Anal. Chim. Acta, 2021, 2299, (8), 3715-3722.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2012, 251, (10), 9500-9505.