The present paper describes a new, easy and versatile synthesis of showdomycin, and investigates several important features of the stereochemistry of its intermediate products. The absolute configurations on C-2 of following and similar compounds were determined by 1H-NMR spectroacopy and/or methods of Molecular Mechanics: Methyl 3,6-anhydro-2-deoxy-2-bromo-4.5-0-isopropylidene-7-0-trityl-D-glycero-D