(3aR,5S,5aS,8S,8aS,9aR)-8-羟基-8a-(羟基甲基)-5-甲基-1-亚甲基-4,5,5a,6,7,8,9,9a-八氢-3aH-薁并[7,6-D]呋喃-2-酮

((3aS,5R,8S,8aS)-3a-Benzyloxymethyl-8-methyl-3-oxo-1,2,3,3a,4,5,8,8a-octahydro-azulen-5-yl)-acetic acid

(3aR,4aS,5S,7aS,8S,9aR)-5-Hydroxy-4a-hydroxymethyl-8-methyl-decahydro-azuleno[6,5-b]furan-2-one

(3R,3aS,7S,8R,8aS,9R)-3-(tert-Butyl-dimethyl-silanyloxy)-9-hydroxy-8-methyl-octahydro-3a,7-methano-azulen-6-one

(3aR,4aS,5S,7aS,8S,9aR)-4a-Benzyloxymethyl-5-hydroxy-8-methyl-decahydro-azuleno[6,5-b]furan-2-one