[8-bromo-2-(3,3-dibromo-allyl)-9-ethyl-2,3,4,7,8,9-hexahydro-oxonin-3-yloxy]-tert-butyl-dimethyl-silane

[2-benzyloxy-1-(13,13-dimethyl-5,9,12,14-tetraoxa-tricyclo[8.4.0.04,6]tetradec-8-yl)-ethoxy]-tert-butyl-dimethyl-silane

[2-(2-benzyloxy-ethyl)-9-ethyl-8-(4-methoxy-benzyloxy)-2,3,4,7,8,9-hexahydro-oxonin-3-yloxy]-tert-butyl-dimethyl-silane

2-[8-bromo-3-(tert-butyl-dimethyl-silanyloxy)-9-ethyl-2,3,4,7,8,9-hexahydro-oxonin-2-yl]-ethanol

[6-(2-benzyloxy-1-bromo-ethyl)-2,2-dimethyl-4a,6,7,8,11,11a-hexahydro-4H-1,3,5-trioxa-benzocyclononen-7-yloxy]-tert-butyl-dimethyl-silane

9-(2-benzyloxy-ethyl)-8-(tert-butyl-dimethyl-silanyloxy)-2-hydroxymethyl-2,3,4,7,8,9-hexahydro-oxonin-3-ol