Brown S R, Schröder R, Williams B T. "Method for the Synthesis of Propranolol Impurity 5" [P]. US Patent, US 10965924 B2, 2019-08-12.
Park J H, Kumar R, Thompson G K. "A Process for Preparing High-Purity Propranolol Impurity 5" [P]. US Patent, US 9155126 B2, 2022-01-10.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of 普萘洛尔杂质5 in Pharmaceutical Formulations". Environ. Sci. Technol., 2016, 2259, (12), 4788-4796.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of 普萘洛尔杂质5 as an Impurity". Anal. Methods, 2025, 1372, 5516-5537.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Propranolol Impurity 5 Using HRMS and NMR". Talanta, 2019, 1488, 3349-3356.