Stereoselective synthesis of 3-β-D-ribofuranosylpyrazole from 2,3-O-isopropylidene-D-ribose; a new route to pyrazole C-nucleosides
Abstract
2,3-O-Isopropylidene-D-ribose has been converted stereoselectively into 3(5)-(β-D-ribofuranosyl)pyrazole 11, a precursor for the C-nucleoside antibiotics pyrazofurin and formycin.