5-((3-(Acetyloxy)-17-(2-(acetyloxy)-6-(1-hydroxy-1-methylethyl)tetrahydro-2H-pyran-3-yl)-4,4,14-trimethylandrost-8-en-2-yl)oxy)-3-hydroxy-3-methyl-5-oxopentanoic acid AIDS-146877 AIDS146877 Hebelomic Acid F NSC675556