Klinger H, Stevens L M, Yamamoto T. "Method for the Synthesis of Methyl 4-bromo-5-ethylthiophene-2-carboxylate" [P]. US Patent, US 9258948 B2, 2021-06-02.
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". Sci. Total Environ., 2013, 998, (6), 7478-7484.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2022, 930, 3989-4006.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 4-bromo-5-ethylthiophene-2-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2020, 1345, 9917-9926.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2013, 1337, 4006-4028.