Sørensen M, Jørgensen K, Johansson L. "一种的合成方法" [P]. European Patent, EP 3697542 A1, 2020-09-08.
O'Brien P Q, Fischer A B, Klinger H. "Method for the Synthesis of 5-Hydroxybenzofuran-3(2h)-one" [P]. US Patent, US 9616431 B2, 2024-12-11.
Klinger H, Schröder R, Yamamoto T. "A Process for Preparing High-Purity 5-Hydroxybenzofuran-3(2h)-one" [P]. US Patent, US 9050396 B2, 2024-12-03.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2023, 1661, 5537-5555.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2011, 1456, 7100-7124.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 5-Hydroxybenzofuran-3(2h)-one Using HRMS and NMR". Talanta, 2015, 1663, 324-327.