Brown S R, Stevens L M, O'Brien P Q. "Method for the Synthesis of 4-(2-(Tert-butylamino)-1-hydroxyethyl)-2-methylphenol hemisulfate" [P]. US Patent, US 10208962 B2, 2024-06-03.
Stevens L M, Park J H, Anderson J P. "A Process for Preparing High-Purity 4-(2-(Tert-butylamino)-1-hydroxyethyl)-2-methylphenol hemisulfate" [P]. US Patent, US 10775801 B2, 2018-02-06.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of 4-(2-(叔丁氨基)-1-羟基乙基)-2-甲基苯酚 半硫酸盐 in Pharmaceutical Formulations". Environ. Sci. Technol., 2023, 1171, 1087-1094.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-(2-(叔丁氨基)-1-羟基乙基)-2-甲基苯酚 半硫酸盐 as an Impurity". J. Nat. Prod., 2013, 139, (3), 7176-7200.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-(Tert-butylamino)-1-hydroxyethyl)-2-methylphenol hemisulfate Using HRMS and NMR". Chemosphere, 2021, 852, (6), 485-488.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate 4-(2-(叔丁氨基)-1-羟基乙基)-2-甲基苯酚 半硫酸盐 Profile in Drug Substances According to ICH Guidelines". Molecules, 2024, 2355, 5169-5173.