Klinger H, Hughes D C, Stevens L M. "Method for the Synthesis of Methyl 5-cyanothieno[2,3-b]pyridine-3-carboxylate" [P]. US Patent, US 11206338 B2, 2019-06-24.
Nielsen H, Lefèvre J P, Sørensen M. "A Process for Preparing High-Purity Methyl 5-cyanothieno[2,3-b]pyridine-3-carboxylate" [P]. European Patent, EP 3572343 A1, 2022-10-04.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2025, 1676, (5), 2731-2746.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2020, 1237, (6), 7766-7773.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-cyanothieno[2,3-b]pyridine-3-carboxylate Using HRMS and NMR". Sci. Total Environ., 2010, 1277, (8), 1781-1811.