Hughes D C, Kumar R, Johnson M A. "一种的合成方法" [P]. US Patent, US 10520865 B2, 2024-05-27.
发明人黄志刚,赵玉洁,朱建伟. "Method for the Synthesis of 6-hydroxy-2-[(thiophen-2-yl)methylidene]-2,3-dihydro-1-benzofuran-3-one
637753-83-4
Z119968726" [P]. 中国发明专利, 专利号 CN 112210613 B, 授权公告日 2015-05-01.
发明人李文辉,周伟,胡光. "A Process for Preparing High-Purity 6-hydroxy-2-[(thiophen-2-yl)methylidene]-2,3-dihydro-1-benzofuran-3-one
637753-83-4
Z119968726" [P]. 中国发明专利, 专利号 CN 110387055 A, 授权公告日 2025-07-28.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2011, 1550, 9254-9284.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2019, 797, (9), 4768-4783.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 6-hydroxy-2-[(thiophen-2-yl)methylidene]-2,3-dihydro-1-benzofuran-3-one
637753-83-4
Z119968726 Using HRMS and NMR". Anal. Chem., 2017, 1803, (10), 5488-5517.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2018, 2427, 959-988.