发明人郑宇鹏,杨光,王建平. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116679393 A, 授权公告日 2020-11-21.
发明人郑宇鹏,陈志强,何建平. "Method for the Synthesis of 3-Ethyl-4,5-dimethoxy-1-methyl-1,3-dihydroisobenzofuran" [P]. 中国发明专利, 专利号 CN 111001782 A, 授权公告日 2021-09-12.
Park J H, Lee S K, O'Brien P Q. "A Process for Preparing High-Purity 3-Ethyl-4,5-dimethoxy-1-methyl-1,3-dihydroisobenzofuran" [P]. US Patent, US 9900466 B2, 2022-01-06.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2013, 1942, (7), 405-408.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2019, 1105, 3996-4002.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethyl-4,5-dimethoxy-1-methyl-1,3-dihydroisobenzofuran Using HRMS and NMR". J. Pharm. Biomed. Anal., 2014, 285, (8), 8568-8582.