(1S,3aS,4aR,4bS,5R,6aR,10aR,10bR,12aS)-5-(Acetyloxy)-1-(3-furanyl)-1,5,6,6a,7,10a,10b,11,12,12a-decahydro-4b,7,7,10a,12a-pentamethyloxireno[c]phenanthro[1,2-d]pyran-3,8(3aH,4bH)-dione; Gedunine; NSC 113497; (5α,7α,13α,14β,15β,17aα)-7-(Acetyloxy)-14,15:21,23-diepoxy-4,4,8-trimethyl-D-homo-24-nor-17-oxachola-1,20,22-triene-3,16-dione

Gedunin is a naturally occurring Hsp90 inhibitor. In vitro, Gedunin induces Hsp90-dependent client protein degradation and displays antiproliferative activity (IC50 values are 3.22, 8.84 and 16.8uM in SKBr3, MCF-7 and CaCo-2 cancer cell lines respectively). Gedunin exhibits antimalarial activity against P. falciparum (IC50 values are 0.14 and 3.1uM in parasite development and [3H]-hypoxanthine uptake assays respectively).