(2R,4S,6R)-4-(tert-Butyl-diphenyl-silanyloxy)-6-(tert-butyl-diphenyl-silanyloxymethyl)-2-methoxy-2-((S)-2-methoxy-pent-4-ynyl)-tetrahydro-pyran

(2R,4S,6R)-4-(tert-Butyl-diphenyl-silanyloxy)-6-(tert-butyl-diphenyl-silanyloxymethyl)-2-((E)-(S)-5-iodo-2-methoxy-pent-4-enyl)-2-methoxy-tetrahydro-pyran

(2S,4R)-4,5-Bis-(tert-butyl-diphenyl-silanyloxy)-1-[2-((S)-2-methoxy-pent-4-enyl)-[1,3]dithian-2-yl]-pentan-2-ol

(S)-1-{2-[(2S,4S)-6-Benzyloxy-2,4-bis-(tert-butyl-diphenyl-silanyloxy)-hexyl]-[1,3]dithian-2-yl}-2-methyl-3-(R)-oxiranyl-propan-2-ol

(2S,4S,7R)-1-{2-[(2S,4S)-6-Benzyloxy-2,4-bis-(tert-butyl-diphenyl-silanyloxy)-hexyl]-[1,3]dithian-2-yl}-2-methyl-7-((2S,3R)-3-methyl-1,5-dioxa-spiro[5.5]undec-2-yl)-6-methylene-octane-2,4-diol