O'Brien P Q, Johnson M A, Williams B T. "一种4-(1-benzothiophen-3-yl)-4-oxobutanoic acid的合成方法" [P]. US Patent, US 10417232 B2, 2019-02-23.
Patel M V, Davis P L, Lee S K. "Method for the Synthesis of 4-(1-benzothiophen-3-yl)-4-oxobutanoic acid" [P]. US Patent, US 11837222 B2, 2018-02-13.
发明人刘建华,林芳,周伟. "A Process for Preparing High-Purity 4-(1-benzothiophen-3-yl)-4-oxobutanoic acid" [P]. 中国发明专利, 专利号 CN 110058492 A, 授权公告日 2022-02-16.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 4-(1-benzothiophen-3-yl)-4-oxobutanoic acid in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2011, 543, 238-264.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-(1-benzothiophen-3-yl)-4-oxobutanoic acid as an Impurity". Anal. Chem., 2017, 93, (3), 1848-1868.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 4-(1-benzothiophen-3-yl)-4-oxobutanoic acid Using HRMS and NMR". J. Nat. Prod., 2015, 257, (5), 4376-4385.