Salts of glucopyranose derivative and its intermediate.

摘要

A salt of glucopyranose derivative of the formula (I) wherein R<2> is R<3> is Y<+> is sodium ion or tris(hydroxymethyl)methylammonium ion. Further, a glucopyranose derivative of the formula (II) wherein all the symbols are the same meaning as hereinbefore defined, is an important intermediate for the preparationof compound of the formula (I). The compoud of the formula (I) is prossess enhancing activity of cellular immunity, and therefore be useful for enhancing agent of immunity, prossess inducing activith of TNF, inducing activity of IL-1 and inducing activity of IFN, and therefore be useful for anti-tumor agent. Further, the compound of the formula (II) is intermediate for the preparation of compound of the formula (I), and it can be prepared to advantage on industrially.