C-GLYCOSYLFURANS .1. A SYNTHESIS

The C-glycosyl heterocycles join their interest as potential antiviral and antibacterial agents to their nature as C-glycoside precursors th rough different heterocycle transformations. With respect to C-glycosy lfurans, the reaction of sugar condensation with furan, produces bette r results when it is carried out with Dziewszek's method than with Suz uki's one (n-BuLi in THF) and yields higher quantities of the isomer h aving the same configuration at the new asymmetric center than that of the nearest chiral carbon atom.