The invention relates to compounds of formula (I) B-Q-X1, wherein B is abioactive, cell adhesive mediating molecule, selected from the group (i) andThr-Trp-Tyr-Lys-Ile-Ala-Phe-Gln-Arg-Asn-Arg-Lys (ii), Trp-Tyr-Lys-Ile-Ala-Phe-Gln-Arg-Asn-Arg-Lys (iii), Tyr-Lys-Ile-Ala-Phe-Gln-Arg-Asn-Arg-Lys (iv), Thr-Trp-Tyr-Lys-Ile-Ala-Phe-Gln-Arg-Asn-Arg (v), Thr-Trp-Tyr-Lys-Ile-Ala-Phe-Gln-Arg-Asn (vi), Thr-Trp-Tyr-Lys-Ile-Ala-Phe-Gln-Arg (vii), wherein (i) X, Y, Z,R2, R3, R4, A, Ar, Hal, Het, Het1, n, m, o, p, q, s, t have the meanings citedin Claim 1, Q is absent or is an organic spacer molecule, X1 is an anchormolecule selected from the group cited in Claim 1, and the salts thereof,which can be used as integrin inhibitors particularly for treatment ofillnesses, deficiencies and inflammations caused by implants and osteolyticillnesses such as osteoporosis, thrombosis, cardiac infarction andarteriosclerosis, in addition to the acceleration and strengthening of theintegration process of implants or the biocompatible surface in tissue.