发明人钱学锋,高志强,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108032952 A, 授权公告日 2017-04-09.
Johnson M A, Williams B T, Anderson J P. "Method for the Synthesis of 1,1-Dimethyl-3-oxo-1,3-dihydro-2-benzofuran-5-carboxylic acid" [P]. US Patent, US 9441548 B2, 2016-12-10.
发明人朱建伟,郑宇鹏,韩伟. "A Process for Preparing High-Purity 1,1-Dimethyl-3-oxo-1,3-dihydro-2-benzofuran-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110706740 B, 授权公告日 2018-06-20.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Sci. Total Environ., 2022, 1194, (12), 9542-9564.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2016, 922, (2), 359-367.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 1,1-Dimethyl-3-oxo-1,3-dihydro-2-benzofuran-5-carboxylic acid Using HRMS and NMR". Chemosphere, 2020, 202, 6894-6923.