(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

(3S,3aR,7R,8S,8aR,9S)-3-((tert-butyldimethylsilyl)oxy)-8-methyl-6-oxooctahydro-1H-3a,7-methanoazulen-9-yl benzoate

(3S,3aR,5S,6S,7S,8S,8aR,9S)-3-((tert-butyldimethylsilyl)oxy)-5-(2-((tert-butyldimethylsilyl)oxy)ethyl)-6-hydroxy-8-methyloctahydro-1H-3a,7-methanoazulen-9-yl benzoate

(3aR,4aS,7aS,8S,9aR)-4a-((benzyloxy)methyl)-8-methyldecahydroazuleno[6,5-b]furan-2,5-dione

(3R,3aR,6S,7R,8R,8aS)-3-((tert-butyldimethylsilyl)oxy)-6-hydroxy-8-methyl-2,3,6,7,8,8a-hexahydro-1H-3a,7-methanoazulen-9-one