(4aS,6aR,6aS,6bR,8aR,9S,10S,12aR,14bS)-9-formyl-10-hydroxy-2,2,6a,6b,9,12a-hexamethyl-1,3,4,5,6,6a,7,8,8a,10,11,12,13,14b-tetradecahydropicene-4a-carboxylic acid (4aS,6aR,6aS,6bR,8aR,9S,10S,12aR,14bS)-9-formyl-10-hydroxy-2,2,6a,6b,9,12a-hexamethyl-1,3,4,5