Showing structure for methyl (2r,4as,6ar,6br,12br,14as,14br)-9-formyl-10,11-dihydroxy-2,4a,6a,12b,14a-pentamethyl-8-oxo-1,3,4,5,6,6b,7,13,14,14b-decahydropicene-2-carboxylate