丁酸酐

8-O-debutanoylnortrilobolide

(2aS,2a1R,5aS,7S,7aS,9R,10bS)-7-acetoxy-2a1-hydroxy-2a,4,4,7,10-pentamethyl-2-oxo-2,2a,2a1,5a,6,7,7a,8,9,10b-decahydro-1,3,5-trioxabenzo[cd]cyclopenta[h]azulen-9-yl (Z)-2-methylbut-2-enoate

(S)-1-((1R,2R,3S,5S)-3-((tert-butyldiphenylsilyl)oxy)-5-((S)-2-(methoxymethoxy)pent-4-en-2-yl)-2-methylcyclopentyl)-2-ethoxyprop-2-en-1-ol

tert-butyl(((1R,2S,3aS,4S,8S,8aR)-7-ethoxy-4-(methoxymethoxy)-1,4-dimethyl-8-((triethylsilyl)oxy)-1,2,3,3a,4,5,8,8a-octahydroazulen-2-yl)oxy)diphenylsilane