79439-85-3 AIDS-026370 AIDS026370 Bruceantinoside A NSC333530 Picras-1-en-21-oic acid, 13,20-epoxy-2-(.beta.-D-glucopyranosyloxy)-11,12-dihydroxy-15-[(3,4-dimethyl-1-oxo-2-pentenyl)oxy]-3,16-dioxo-, methyl ester, [11.beta.,12.alpha.,15.beta.(E)]-