Yamamoto T, Davis P L, Mueller T. "Method for the Synthesis of Isoquinoline Impurity 22" [P]. US Patent, US 10088659 B2, 2022-01-07.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2011, 1076, (5), 2156-2159.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2018, 1792, 4524-4549.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of Isoquinoline Impurity 22 Using HRMS and NMR". Anal. Chim. Acta, 2018, 1070, (5), 5347-5374.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Food Chem., 2021, 1785, (12), 888-893.