2-piperazinone compounds and their use

Abstract

The compounds of the formula ##STR1## wherein G stands for an amidino group or an optionally cyclic amino group, these being respectively optionally substituted; D stands for a spacer having 2 to 6 atomic chain optionally bonded through a hetero-atom and/or a 5- to 6-membered ring (provided that the 5- to 6-membered ring is, depending on its bonding position, counted as 2 to 3 atomic chains); R.sup.1 stands for hydrogen, benzyl group or a lower alkyl group; R.sup.2 and R.sup.3 independently stand for a residual group formed by removing --CH(NH.sub.2)COOH from an .alpha.-amino acid, or R.sup.1 and R.sup.2 may form a 5- to 6-membered ring taken together with the adjacent N and C; X stands for hydrogen or an optionally substituted lower alkyl group; and Z stands for a group capable of forming an anion or a group convertible into an anion in a living body, or salts thereof and agents for inhibiting cell-adhesion, which are characterized by containing these compounds. The novel compounds and pharmaceutical agents are effective for prophylaxis and therapy of various diseases by controlling or inhibiting cell adhesion.

Dependencies are inferred from the claim text.