发明人王建平,马晓峰,郭海燕. "Method for the Synthesis of 2,4-Dihydroxy-5,6-dimethyl Nicotinic Acid Ethyl Ester" [P]. 中国发明专利, 专利号 CN 111920370 A, 授权公告日 2021-01-18.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2024, 1581, 8506-8510.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2014, 169, (8), 6697-6703.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of 2,4-Dihydroxy-5,6-dimethyl Nicotinic Acid Ethyl Ester Using HRMS and NMR". J. Chromatogr. A, 2015, 2145, 1465-1484.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2017, 1743, 6966-6987.