(3R,4R,5R)-N-benzyloxycarbonyl-5-allylamino-3,4,6-tribenzyloxy-hex-1-ene

(2R,3R,4R)-benzyl 3,4-bis(benzyloxy)-2-[(benzyloxy)methyl]-2,3,4,7-tetrahydro-1H-azepine-1-carboxylate