3H-Oxireno(8,8a)azuleno(4,5-b)furan-3,8(4aH)-dione, 5,6,6a,7,9a,9b-hexahydro-6-hydroxy-1,4a,7-trimethyl-, (4aR-(3aS*,4aalpha,6beta,6abeta,7alpha,9aalpha,9bbeta))- 80876-77-3