Klinger H, Yamamoto T, Anderson J P. "一种的合成方法" [P]. US Patent, US 11164667 B2, 2024-02-21.
Thompson G K, Park J H, Yamamoto T. "Method for the Synthesis of 5,7-Difluoro-1-methyl-1,2,3,4-tetrahydroisoquinoline hydrochloride" [P]. US Patent, US 9619190 B2, 2017-10-07.
Klinger H, Chen K W, Patel M V. "A Process for Preparing High-Purity 5,7-Difluoro-1-methyl-1,2,3,4-tetrahydroisoquinoline hydrochloride" [P]. US Patent, US 10862670 B2, 2018-06-11.
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". J. Agric. Food Chem., 2025, 1417, (3), 7247-7269.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2011, 1916, 6019-6031.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 5,7-Difluoro-1-methyl-1,2,3,4-tetrahydroisoquinoline hydrochloride Using HRMS and NMR". Anal. Chim. Acta, 2016, 1376, (6), 6649-6669.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2012, 223, 8261-8290.