3'',4'',6''-tri-O-benzyl-1'',2''-dideoxy-D-arabino-hex-1''-enyl (methyl (4S)-4-C-((3',4',6'-tri-O-benzyl-1',2'-dideoxy-D-arabino-hex-1'-enyl)-(4-ethanoate))-2,3-O-isopropylidene-4,6,7-trideoxy-β-D-mannooctopyranosid)uronate