6-(2-benzyloxy-1-hydroxy-ethyl)-2,2-dimethyl-4a,6,7,8,11,11a-hexahydro-4H-1,3,5-trioxa-benzocyclononen-7-ol

[2-(2-benzyloxy-ethyl)-8-bromo-9-ethyl-2,3,4,7,8,9-hexahydro-oxonin-3-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

[2-benzyloxy-1-(2,2-dimethyl-4a,6,7,10,11,11a-hexahydro-4H-1,3,5-trioxa-benzocyclononen-6-yl)-ethoxy]-tert-butyl-dimethyl-silane

[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