Chen K W, O'Brien P Q, Patel M V. "一种的合成方法" [P]. US Patent, US 10350758 B2, 2023-03-16.
Yamamoto T, Schröder R, Johnson M A. "Method for the Synthesis of 2-(4-benzoyl-3-cyano-5-hydroxy-5-methyl-1,5-dihydro-2H-pyrrol-2-yliden)malononitrile" [P]. US Patent, US 9350044 B2, 2023-08-12.
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". Anal. Methods, 2018, 1219, (12), 7462-7489.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2012, 1527, (10), 5224-5250.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 2-(4-benzoyl-3-cyano-5-hydroxy-5-methyl-1,5-dihydro-2H-pyrrol-2-yliden)malononitrile Using HRMS and NMR". Chemosphere, 2019, 85, (5), 5931-5959.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2015, 2334, (4), 4129-4135.