ethyl 2-O-p-methoxybenzyl-4,6-di-O-benzylidene-3-O-[4-(2,2-di-tert-butyloxycarbonylethyl)benzyl]-1-thio-β-D-galactopyranoside

(2S,3R,4E)-3-benzoyloxy-2-azido-1-{3-O-[4-(2,2-di-tert-butyloxycarbonylethyl)benzyl]-2-O-p-methoxybenzyl-4,6-O-benzylidene-α-D-galactopyranosyloxy}-4-octadecene