PROCESS FOR THE PREPARATION OF (2R.3S)-2-(HYDROXYMETHYL) -5-METHOXYTETRAHYDROFURAN-3-OL AND ACETYLATED DERIVATIVES THEREOF, FREE OF PYRANOSE COMPOUNDS

摘要

A method of preparing a ribofuranose derivative essentially free of pyranose compounds includes a step of contacting a solution of MDR containing MDRP as an impurity in a solvent including methanol and/or tetrahydrofuran with at least one alkali metal periodate under conditions sufficient to oxidize at least a portion of the MDRP. MDR containing at most 5 wt% of MDRP based on the total weight of MDR and MDRP may be produced.