(2R)-1,2beta-[[(S)-1-Oxo-3-(1H-indole-3-yl)propane-1,2-diyl]iminocarbonyl]-3aalpha-(1,1-dimethyl-2-propenyl)-8-acetyl-1,2,3,3a,8,8aalpha-hexahydropyrrolo[2,3-b]indole

(2R)-1,2beta-[[(S)-1-Oxo-3-(1H-indole-3-yl)propane-1,2-diyl]iminocarbonyl]-3aalpha-(1,1-dimethyl-2-propenyl)-8-acetyl-1,2,3,3a,8,8aalpha-hexahydropyrrolo[2,3-b]indole