Björnsson E, Mueller T C, Nowak P. "Method for the Synthesis of 3-(3,4-Dimethoxyphenyl)-6,7-dimethoxy-1-methylisoquinoline" [P]. European Patent, EP 3434701 A1, 2023-07-25.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2014, 1252, 9590-9610.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2022, 694, 926-945.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 3-(3,4-Dimethoxyphenyl)-6,7-dimethoxy-1-methylisoquinoline Using HRMS and NMR". Sci. Total Environ., 2023, 1144, 8647-8666.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2022, 2026, 1286-1316.