(4R)-4-[(1'S)-1'-hydroxy-2'-propenyl]-3-allyl-1,3-oxazolidin-2-one

(1R,2R,3R,7R,7aS)-3-hydroxymethyl-2,3,5,6,7,7a-hexahydro-1H-pyrrolizin-1,2,7-triol

(R)-4-((1S,2S)-2-azido-1,3-bis(benzyloxy)propyl)-2,2-dimethyl-1,3-dioxolane

[(2S,3R,4S)-3-Benzyloxy-4-benzyloxymethyl-1-(toluene-4-sulfonyl)-azetidin-2-yl]-methanol

(2S,3S,4S)-3-Benzyloxy-2-benzyloxymethyl-4-(tert-butyl-dimethyl-silanyloxymethyl)-1-(toluene-4-sulfonyl)-azetidine