(2R,4R,5R)-4-(benzyloxy)-5-((benzyloxy)methyl)-2-(((2R,3R,4S,5S)-3,4-bis(benzyloxy)-5-(pent-4-en-1-yloxy)tetrahydrofuran-2-yl)methoxy)dihydrofuran-3(2H)-one

pent-4-enyl 2,3-di-O-benzyl-5-O-(2-O-benzoyl-3,5-di-O-benzyl-β-D-ribofuranosyl)-α-D-arabinofuranoside

pent-4-enyl 2,3-di-O-benzyl-5-O-(3,5-di-O-benzyl-β-D-ribofuranosyl)-α-D-arabinofuranoside

(2R,3S,4S,5S)-2-(((tert-butyldiphenylsilyl)oxy)methyl)-5-(pent-4-en-1-yloxy)tetrahydrofuran-3,4-diol