Abstract: Compounds of general formula (1) ##STR1## are described wherein: Ar is an optionally substituted aromatic group;R.sup.2 is a hydrogen or halogen atom or a group --X.sup.1 --R.sup.2a where X.sup.1 is a direct bond or a linker atom or group, and R.sup.2a is an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group;R.sup.3 is an optionally substituted heterocycloalkyl group; and the salts, solvates, hydrates and N-oxides thereof.The compounds are selective protein tyrosine kinase inhibitors, particularly the kinases ZAP-70 and syk and are of use in the prophylaxis and treatment of immune or allergic diseases and diseases involving inappropriate platelet activation.

Abstract: Compounds of general formula (1): ##STR1## are described wherein Het is an optionally substituted heteroaromatic group; R.sup.1 is a hydrogen atom or a straight or branched chain alkyl group; R.sup.2 is a hydrogen or halogen atom or a group --X.sup.1 --R.sup.2a where X.sup.1 is a direct bond or a linker atom or group, and R.sup.2a is an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group; R.sup.3 is an optionally substituted aromatic or heteroaromatic group; and the salts, solvates, hydrates and N-oxides thereof. The compounds are selective protein kinase inhibitors, particularly the kinases p56.sup.lck, ZAP-70 and protein kinase C and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate protein kinase action is believed to have a role.

Abstract: Fused polycyclic 2-aminopyrimidines of formula (1): ##STR1## wherein Ar is an optionally substituted aromatic or heteroaromatic group;X is a carbon or nitrogen atom;Y is a carbon or nitrogen atom;Z is a linker group;A together with X and Y forms an optionally substituted monocyclic or bicyclic aromatic or heteroaromatic group;and the salts, solvates, hydrates and N-oxides thereof are described. The compounds are potent and selective inhibitors of the protein tyrosine kinases p56.sup.lck and p59.sup.fyn and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate p56.sup.lck and/or p59.sup.fyn activity is believed to have a role.

Abstract: Compounds of formula (1) are described: ##STR1## and the salts, solvates, hydrates and N-oxides thereof, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 have the meanings given in claim 1. The compounds are selective inhibitors of protein kinases, especially src-family protein kinases and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate protein kinase action is believed to have a role.

Abstract: 2-Anilinopyrimidines, processes for their preparation, pharmaceutical compositions containing them, their use in medicine. In a preferred embodiment, the compounds have the general formula (1): ##STR1## wherein R.sup.1 is preferably methoxy; R.sup.2 and R.sup.3 are preferably methyl; R.sup.4 is preferably a hydrogen atom; R.sup.5 is a hydrogen atom or an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group; R.sup.6 is a hydrogen or halogen atom or an amino (--NH.sub.2), substituted amino, nitro, carboxyl (--CO.sub.2 H), esterified carboxyl or --X.sup.1 R.sup.6a where X.sup.1 is a direct bond or a linker atom or group and R.sup.6a is an optionally substituted straight or branched chain alkyl, alkenyl or alkynyl group; X is a direct bond or a linker atom or group; and R.sup.7 is an optionally substituted aliphatic, cycloaliphatic, heteroaliphatic, heterocycloaliphatic, aromatic or heteroaromatic group.

Abstract: Compounds of general formula (1) are described: ##STR1## wherein Ar is an optionally substituted aromatic or heteroaromatic group;X.sup.1 is an oxygen or sulphur atom;R.sup.1 is a hydrogen atom or a methyl group;R.sup.2 is a hydrogen atom or a group --Alk.sup.1 or --X.sup.2 Alk.sup.1 where Alk.sup.1 is an optionally substituted aliphatic or heteroaliphatic group and X.sup.2 is a --C(O)--, --C(S)--, or --S(O).sub.n group where n is an integer 1 or 2;R.sup.3 is a hydrogen atom or a group --Alk.sup.2, ?where Alk.sup.2 is as defined for Alk.sup.1 !, --X.sup.2 Alk.sup.2, --Ar.sup.1 ?where Ar.sup.1 is an optionally substituted aromatic or heteroaromatic group!, --Alk.sup.2 Ar.sup.1, or --X.sup.2 Alk.sup.2 Ar.sup.1 ;and the salts, solvates, hydrates and N-oxides thereof.The compounds are selective inhibitors of the protein tyrosine kinase p56.sup.lck and are of use in the prophylaxis and treatment of immune diseases, hyperproliferative disorders and other diseases in which inappropriate p56.sup.