发明人王建平,杨光,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109136749 A, 授权公告日 2025-04-02.
发明人陈志强,徐明华,黄志刚. "Method for the Synthesis of Ethyl 3-methyl-4-oxo-4,5,6,7-tetrahydro-1-benzofuran-2-carboxylate" [P]. 中国发明专利, 专利号 CN 112490591 A, 授权公告日 2023-08-25.
发明人黄志刚,刘建华,赵玉洁. "A Process for Preparing High-Purity Ethyl 3-methyl-4-oxo-4,5,6,7-tetrahydro-1-benzofuran-2-carboxylate" [P]. 中国发明专利, 专利号 CN 109011307 B, 授权公告日 2016-10-17.
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". Anal. Chem., 2021, 1850, (1), 2743-2749.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2010, 1980, (11), 8379-8404.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 3-methyl-4-oxo-4,5,6,7-tetrahydro-1-benzofuran-2-carboxylate Using HRMS and NMR". Biomed. Chromatogr., 2017, 2232, (12), 257-262.