Showing structure for (3S,3aS,4S,4aS,5S,8S,8aS,9R,9aS)-3-((dimethylamino)methyl)-5-hydroxy-4-(isobutyryloxy)-5,8a-dimethyl-2-oxododecahydronaphtho[2,3-b]furan-8,9-diyl diacetate