(2R,3S)-2-(tert-butyldimethylsilyl)oxymethyl-3-benzyloxy-6-oxabicylo[3.1.0]hexane
(2R,3S,5S)-5-thymino-2-(tert-butyldimethyl)silyloxymethyl-3-benzyloxycyclopentanone
(1S,8R,9S,10S)-10-(2,4-dinitroanilino)-3,3,5,5-tetraisopropyl-2,4,6-trioxa-3,5-disilabicyclo<6.3.0>undecan-9-ol
(1S,8S,9R,11S)-10-(2,4-dinitroanilino)-3,3,5,5-tetraisopropyl-2,4,6-trioxa-10-aza-3,5-disilatricyclo<6.4.0.09,11>dodecane