Yamamoto T, Johnson M A, Schröder R. "一种的合成方法" [P]. US Patent, US 10677975 B2, 2015-08-20.
Sørensen M, Björnsson E, Martínez F. "Method for the Synthesis of 4-Oxo-4-(tetrahydro-2-furanylmethoxy)butanoic acid" [P]. European Patent, EP 3649298 A1, 2019-03-28.
Brown S R, Stevens L M, Kumar R. "A Process for Preparing High-Purity 4-Oxo-4-(tetrahydro-2-furanylmethoxy)butanoic acid" [P]. US Patent, US 10672307 B2, 2020-04-10.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2014, 2230, (3), 1580-1607.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2013, 2449, 4570-4592.