(4aR,4bS,6aS,7S,9aS,9bS)-7-acetyl-1-(2-hydroxyethyl)-4a,6a-dimethyl-1,3,4,4a,4b,5,6,6a,7,8,9,9a,9b,10-tetradecahydro-2H-indeno[5,4-f]quinolin-2-one