allyl ((2S,3R,4R,5S,6R)-2-(allyloxy)-6-((((2R,4aR,6R,7R,8R,8aS)-7-amino-8-((4-methoxybenzyl)oxy)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-6-yl)oxy)methyl)-5-(benzyloxy)-4-(((benzyloxy)carbonyl)oxy)tetrahydro-2H-pyran-3-yl)carbamate