oxepino<3,2-b>pyrano<2',3':5,6>pyrano<2,3-f>oxepin-2-propanol, 4,10-bis<(tert-butyldimethylsilyl)oxy>-9-(3,5-hexadienyl)hexadecahydro-5a,10-dimethyl-, <2R-<2α,4α,4aβ,5aβ,7aβ,9α(Z),10β,12aα,13aα,14aα>>-

oxepino<3,2-b>pyrano<2',3':5,6>pyrano<2,3-f>oxepin-2-propanoate, 4,10-bis<(tert-butyldimethylsilyl)oxy>-9-(2-formylethyl)hexadecahydro-5a,10-dimethyl-, <2R-<2α,4α,4aβ,5aβ,7aβ,9α,10β,12aα,13aα,14aα>>-, methyl ester

methyl 3-((2R,4S,4aR,5aR,7aS,9R,10S,12aR,13aS,14aR)-4,10-bis((tert-butyldimethylsilyl)oxy)-5a,10-dimethyl-9-((Z)-6-(phenylselanyl)hex-3-en-1-yl)hexadecahydrooxepino[3,2-b]pyrano[2',3':5,6]pyrano[2,3-f]oxepin-2-yl)propanoate