(Z)-2-Methyl-but-2-enoic acid (2aS,5aS,7S,7aS,9R,10bS,10cR)-7,10c-dihydroxy-2a,4,4,7,10-pentamethyl-2-oxo-2,2a,5a,6,7,7a,8,9,10b,10c-decahydro-1,3,5-trioxa-benzo[cd]cyclopenta[h]azulen-9-yl ester

2-(Diethoxy-phosphoryl)-propionic acid (1R,2S,3aS,4S,6S,8S,8aR)-2-(tert-butyl-diphenyl-silanyloxy)-4-methoxymethoxy-1,4-dimethyl-7-oxo-8-triethylsilanyloxy-decahydro-azulen-6-yl ester

(2aS,5aS,7S,7aS,10bS,10cR)-2a,4,4,7,10-Pentamethyl-7,10c-bis-trimethylsilanyloxy-6,7,7a,8,10b,10c-hexahydro-2aH,5aH-1,3,5-trioxa-benzo[cd]cyclopenta[h]azulene-2,9-dione

(Z)-2-Methyl-but-2-enoic acid (2aS,5aS,7S,7aS,9R,10bS,10cR)-2a,4,4,7,10-pentamethyl-2-oxo-7,10c-bis-trimethylsilanyloxy-2,2a,5a,6,7,7a,8,9,10b,10c-decahydro-1,3,5-trioxa-benzo[cd]cyclopenta[h]azulen-9-yl ester

(1R,2R,3S,5S)-3-(tert-Butyl-diphenyl-silanyloxy)-5-((S)-1-methoxymethoxy-1-methyl-but-3-enyl)-2-methyl-cyclopentanecarbaldehyde