发明人胡光,王建平,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109986274 A, 授权公告日 2015-12-20.
发明人何建平,刘建华,胡光. "Method for the Synthesis of 6-(3,4-Dimethoxyphenyl)nicotinic Acid" [P]. 中国发明专利, 专利号 CN 109644387 B, 授权公告日 2018-09-01.
发明人赵玉洁,唐晓军,钱学锋. "A Process for Preparing High-Purity 6-(3,4-Dimethoxyphenyl)nicotinic Acid" [P]. 中国发明专利, 专利号 CN 114249767 A, 授权公告日 2022-06-15.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Food Chem., 2022, 2168, (8), 8952-8967.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2011, 1823, (2), 3734-3747.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 6-(3,4-Dimethoxyphenyl)nicotinic Acid Using HRMS and NMR". Sci. Total Environ., 2022, 358, 6864-6893.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2021, 563, 9407-9433.