Johnson M A, O'Brien P Q, Hughes D C. "Method for the Synthesis of (S)-4-(1-Aminoethyl)-2-methoxybenzoic acid hydrochloride" [P]. US Patent, US 11065148 B2, 2022-08-19.
Hughes D C, Mueller T, Klinger H. "A Process for Preparing High-Purity (S)-4-(1-Aminoethyl)-2-methoxybenzoic acid hydrochloride" [P]. US Patent, US 11944695 B2, 2025-11-11.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2014, 2475, (11), 6111-6116.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2011, 680, 2500-2525.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of (S)-4-(1-Aminoethyl)-2-methoxybenzoic acid hydrochloride Using HRMS and NMR". J. Pharm. Biomed. Anal., 2021, 2363, (12), 620-634.