Hughes D C, Johnson M A, Klinger H. "Method for the Synthesis of 4-formyl-2,5-dimethyl-1H-pyrrole-3-carboxylic acid" [P]. US Patent, US 11648356 B2, 2019-05-23.
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. Chim. Acta, 2021, 293, (10), 6563-6568.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2013, 2098, 4791-4804.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 4-formyl-2,5-dimethyl-1H-pyrrole-3-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2021, 2117, 2705-2724.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2010, 1670, (12), 2609-2632.