(3R,5S)-6-Bromo-3,5-bis<(tert-butyldimethylsilyl)oxy>-6-penten-1-ol

(1S,2R,4R,5R)-2-Hydroxymethyl-4-iodo-6-oxabicyclo<3.2.1>octan-7-one

[(2S,3S,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-(2-nitro-phenylselanylmethyl)-cyclohex-(Z)-ylidene]-acetic acid methyl ester

(6R,8S,8aR)-6,8-Bis-(tert-butyl-dimethyl-silanyloxy)-1,5,6,7,8,8a-hexahydro-isochromen-3-one

(1S,2R,4S,5R,6R)-5-(tert-Butyl-dimethyl-silanyloxymethyl)-4-[1,3]dithian-2-ylidenemethyl-7-oxa-bicyclo[4.1.0]heptan-2-ol