(S)-4-Benzyl-3-[(2S,3R,4S)-3-(tert-butyl-dimethyl-silanyloxy)-2,4-dimethyl-5-trityloxy-pentanoyl]-oxazolidin-2-one

(2R,3R,4R,5R,6S)-5-(tert-Butyl-dimethyl-silanyloxy)-3-(4-methoxy-benzyloxy)-2,4,6-trimethyl-7-trityloxy-heptanal

tert-Butyl-[(1R,2R,3S,4S)-3-(4-methoxy-benzyloxy)-2,4-dimethyl-1-((S)-1-methyl-2-trityloxy-ethyl)-hex-5-enyloxy]-dimethyl-silane

tert-Butyl-[(Z)-(1S,2R,3S,4S)-1-((R)-2-iodo-1-methyl-ethyl)-3-(4-methoxy-benzyloxy)-2,4-dimethyl-octa-5,7-dienyloxy]-dimethyl-silane

(3R,4S,5S,6S)-4-(tert-Butyl-dimethyl-silanyloxy)-6-((3Z,8Z)-(2S,5S,6S,7S)-9-iodo-2,6-bis-methoxymethoxy-5,7-dimethyl-deca-3,8-dienyl)-3,5-dimethyl-tetrahydro-pyran-2-one