ethyl 2-((3aS,4aR,5R,6aS,8R,9S,10aR,11aS,13aR)-9-hydroxy-5,9,13a-trimethyl-2-oxotetradecahydro-2H-furo[2',3':6,7]oxepino[3,2-b]pyrano[2,3-f]oxepin-8-yl)acetate

(E)-4-[(2R,3S,4aR,5aS,8R,9S,10aR,11R,12aS)-8-Hydroxy-3,8,11-trimethyl-2-((E)-4-oxo-pent-2-enyl)-3-trimethylsilanyloxy-dodecahydro-1,5,10-trioxa-benzo[b]heptalen-9-yl]-2-methyl-but-2-enoic acid ethyl ester

(E)-(S)-5-[(2R,3S,4aR,5aS,8R,9S,10aR,11R,12aS)-9-((2R,3R)-3-Hydroxymethyl-3-methyl-oxiranylmethyl)-3,8,11-trimethyl-3,8-bis-trimethylsilanyloxy-dodecahydro-1,5,10-trioxa-benzo[b]heptalen-2-yl]-pent-3-en-2-ol

(E)-2-Methyl-4-[(2R,3S,4aR,5aS,8R,9S,10aR,11R,12aS)-3,8,11-trimethyl-2-((E)-4-oxo-pent-2-enyl)-3,8-bis-trimethylsilanyloxy-dodecahydro-1,5,10-trioxa-benzo[b]heptalen-9-yl]-but-2-enoic acid ethyl ester

(2S,3R,4aS,5aR,6R,7aS,8aR,10S,11R,12aS,13aR,14aS,16aR)-3-((tert-butyldimethylsilyl)oxy)-2,6,12a,16a-tetramethyl-11-(prop-1-en-2-yl)-2-vinyloctadecahydro-2H-pyrano[2',3':5,6]pyrano[3,2-b]pyrano[2',3':6,7]oxepino[2,3-f]oxepin-10-ol

ethyl 2-((3aS,4aR,5R,6aS,8R,9S,10aR,11aS,13aR)-5,9,13a-trimethyl-2-oxo-9-((trimethylsilyl)oxy)tetradecahydro-2H-furo[2',3':6,7]oxepino[3,2-b]pyrano[2,3-f]oxepin-8-yl)acetate

(E)-(S)-5-[(2R,3S,4aR,5aS,8R,9S,10aR,11R,12aS)-9-((E)-4-Hydroxy-3-methyl-but-2-enyl)-3,8,11-trimethyl-3,8-bis-trimethylsilanyloxy-dodecahydro-1,5,10-trioxa-benzo[b]heptalen-2-yl]-pent-3-en-2-ol