phenyl 3,4,6-tri-O-benzyl-1-seleno-β-D-galactopyranoside

(2S,3S,4R,5S,6R)-4,5-bis(benzyloxy)-2-(((2S,3S,4S,5R,6R)-5-(benzyloxy)-2-((benzyloxy)methyl)-4-hydroxy-6-methoxytetrahydro-2H-pyran-3-yl)methyl)-6-((benzyloxy)methyl)tetrahydro-2H-pyran-3-ol