Stereocontrolled Synthesis of the D- And L-Glycero-B-D-Manno-Heptopyranosides and Their 6-Deoxy Analogues. Synthesis of Methyl A-L-Rhamnopyranosyl-(1f3)-D-Glycero-B-D-Manno-Heptopyranosyl-(1f3)-6-Deoxy-Glycero-B-D-Manno-Heptopyranosyl-(1f4)-A-L-Rhamnopyranoside, a Tetrasaccharide Subunit of the Lipopolysaccharide From Plesimonas Shigelloides
