New Synthetic Technology for the Stereocontrolled Construction of 1,1‘-Disaccharides and 1,1‘:1‘‘,2-Trisaccharides. Synthesis of the FG Ring System of Everninomicin 13,384-1

New Synthetic Technology for the Stereocontrolled Construction of 1,1‘-Disaccharides and 1,1‘:1‘‘,2-Trisaccharides. Synthesis of the FG Ring System of Everninomicin 13,384-1