a Hytest Ltd., Eurocity, Tykistokatu 2B, Turku 20520, Finland
b Moscow Institute of Medical Ecology, Simferopolsky Boulevard 8, Moscow 113149, Russia
Abstract:
Stereoselective synthesis of 3′-C-methylene- and 2′-methyl-3′-C-methylene-3′-deoxythymidine is described, the key reaction being the formation of 3-C-methylene function by catalytic isomerization of a chiral epoxyalcohol, prepared from commercially available 3-methyl-2-butenal and 3-methyl-2-pentenal.