Reduction hexa- - the anti- tumor medicine null which designates N-asechiru-kito hexa- oath as the

摘要

NEW MATERIAL:2-Acetamide-2-deoxy-4-glucitoyl penta-N-acetyl-beta-- chitopentanoside of formula I. USE:An antineoplastic agent. PREPARATION:An aqueous solution of hexa-N-acetyl-chitohexaose of formula II is put into an autoclave, into which a pressurized hydrogen gas is then introduced and the resulting system is maintained in the presence of a Raney nickel or ruthenium catalyst at normal or higher temperatures.