S-methyl O-(3R,4S,5R)-4,5-O-isopropylidenedioxycyclopenten-3-yl dithiocarbonate

(3S,4R,5S)-3-tert-butoxycarbonylamino-4,5-isopropylidenedioxycyclopent-1-ene

(4S)-8t-acetoxy-2,2,5-trimethyl-(3at,8at)-hexahydro-4r,7c-methano-[1,3]dioxolo[4,5-d][1,2]oxazepine

1,2-O-isopropylidene-4a-carba-β-L-xylofuranose

(3R,4R,5R)-3-O-bromomethyldimethylsilyl-4,5-O-isopropylidenecyclopentane-3,4,5-triol