159407-52-0 AIDS-057186 AIDS057186 Olean-12-en-28-oic acid, 3-[(O-.beta.-D-glucopyranosyl-(1.fwdarw.2)-O-.beta.-D-xylopyranosyl-(1.fwdarw.4)-O-6-deoxy-.alpha.-L-mannopyranosyl-(1.fwdarw.4)-.beta.-D-xylopyranosyl)oxy]-23-hydroxy-, (3.beta.,4.alpha.)- Transsylvanoside B Triterpenoid Glycoside