O'Brien P Q, Klinger H, Stevens L M. "一种的合成方法" [P]. US Patent, US 11263005 B2, 2020-06-10.
Park J H, Anderson J P, Mueller T. "Method for the Synthesis of Methyl 5-amino-3-isopropoxybenzofuran-2-carboxylate" [P]. US Patent, US 11257967 B2, 2022-01-18.
Thompson G K, Fischer A B, Brown S R. "A Process for Preparing High-Purity Methyl 5-amino-3-isopropoxybenzofuran-2-carboxylate" [P]. US Patent, US 9024541 B2, 2020-11-18.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2023, 1209, (6), 4819-4829.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2016, 563, 7622-7642.