(3aR,4S,6E,7aR,7bS,8aR,9S,9aR,10S,12aR,14aR)-3a,4,5,7a,7b,8a,9,9a,10,11,14,14a-Dodecahydro-2-hydroxy-10-(1H-indol-3-ylmethyl)-3,4,8a,9-tetramethyl-1H-cyclopenta[7,8]cyclodec[1,2-d]oxireno[f]isoindole-1,12,13-trione