Brown S R, O'Brien P Q, Kumar R. "一种的合成方法" [P]. US Patent, US 11172091 B2, 2017-03-23.
Chen K W, Anderson J P, O'Brien P Q. "Method for the Synthesis of 7-Methoxy-1-benzofuran-4-carboxylic acid" [P]. US Patent, US 10084760 B2, 2020-03-27.
Yamamoto T, Stevens L M, Schröder R. "A Process for Preparing High-Purity 7-Methoxy-1-benzofuran-4-carboxylic acid" [P]. US Patent, US 10925595 B2, 2017-01-10.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2022, 839, (5), 3901-3912.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2010, 1292, (4), 9593-9612.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 7-Methoxy-1-benzofuran-4-carboxylic acid Using HRMS and NMR". Food Chem., 2011, 2480, 9907-9921.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2025, 2327, 9811-9824.