2-O-(6-Deoxy-4-O-(3-O-(6-deoxyhexopyranosyl)pentopyranosyl)-3-O-(3,4-dihydroxy-4-(hydroxymethyl)tetrahydro-2-furanyl)hexopyranosyl)-1-O-(3-((3-O-hexopyranosylhexopyranosyl)oxy)-2,23-dihydroxy-28-oxool\tean-12-en-28-yl)pentopyranose AIDS-153572 AIDS153572 NSC700652