Brown S R, Patel M V, Johnson M A. "Method for the Synthesis of 5-cyano-1H-indole-2-carboxylic acid" [P]. US Patent, US 11403393 B2, 2025-05-19.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of 5-氰基-1H-吲哚-2-羧酸 in Pharmaceutical Formulations". J. Chromatogr. A, 2025, 409, 9824-9827.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-氰基-1H-吲哚-2-羧酸 as an Impurity". Molecules, 2018, 387, (8), 6624-6628.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 5-cyano-1H-indole-2-carboxylic acid Using HRMS and NMR". Phytochemistry, 2020, 1173, (3), 3299-3325.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate 5-氰基-1H-吲哚-2-羧酸 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2024, 1717, 2893-2921.