Patel M V, Thompson G K, Kumar R. "一种的合成方法" [P]. US Patent, US 11993903 B2, 2017-03-25.
Mueller T, Anderson J P, Roberts E F. "Method for the Synthesis of 6,7-Dimethoxy-4-methylisoquinoline" [P]. US Patent, US 11135121 B2, 2020-08-15.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2018, 2467, (8), 9053-9067.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2024, 1863, (12), 6295-6308.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 6,7-Dimethoxy-4-methylisoquinoline Using HRMS and NMR". Chromatographia, 2011, 1924, 9411-9423.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2015, 1610, (12), 1293-1323.