(4aS,6aR,6aR,8aR,9R,14bR)-14a-(hydroxymethyl)-2,2,4a,6a,6a,8a,9-heptam ethyl-1,4,5,6,6b,7,8,9,11,12,12a,13,14,14b-tetradecahydropicene-3,10-d ione