Fischer A B, Kumar R, Roberts E F. "Method for the Synthesis of 4-(5-Ethyl-2-methoxyphenyl)-4-oxobutanoic acid" [P]. US Patent, US 11831659 B2, 2023-12-25.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2025, 489, (8), 829-848.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2024, 1818, (8), 8805-8820.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-(5-Ethyl-2-methoxyphenyl)-4-oxobutanoic acid Using HRMS and NMR". Molecules, 2021, 1867, (11), 6928-6953.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2016, 1953, (2), 6210-6215.