Anilino-pyrimidine and 1,2,4-triazine compounds (1) are new. Anilino-pyrimidine and 1,2,4-triazine compounds of formula (1), their tautomers, racemates, enantiomers and/or diastereomers and acid-addition salts are new. X : NR 1a>, O or S; Y : CH or N; Z : hydrogen, halo, (halo)1-3C alkyl, 2-3C alkenyl, 2-3C alkynyl, formyl, 1-3C (halo)alkylcarbonyl, 2-3C alkenyl-, 2-3C alkynyl-carbonyl or pseudohalo; A : (hetero)aryl group (i) or (ii); R a> - R f>e.g. hydrogen, halo or nitro; R 1> and R 1a>hydrogen or methyl; R 2>e.g. Cl, Br, I, OR 6>; R 3>e.g. -CONR 1>-L-Q 3-Q 4-R 9>, -NR 1>-CO-L-Q 3-Q 4-R 9>; R 4>e.g. OR 6>, COR 6>, CONR 6>R 7>, NR 6>R 7>, NR 6>COR 7>, NR 6>SO 2R 7>, N=CR 6>R 7>, SR 6>, SOR 6>, SO 2R 6>, SO 2NR 6>R 7> or pseudohalogen, or any of 1-8C alkyl, 2-10C alkenyl or alkynyl, 3-8C cycloalkyl, (hetero)aryl or heterocyclyl; R 5>hydrogen, halo, trifluoromethyl, 1-3C alkyl or OR 6>; R 6>, R 7>e.g. hydrogen or any of 1-5C alkyl, 2-5C alkenyl or alkynyl, 3-10C cycloalkyl, (hetero)aryl or heterocyclyl; L : e.g. bond or residue of 1-16C alkyl, 2-16C alkenyl or alkynyl, 3-10C cycloalkyl, (hetero)aryl or heterocyclyl; Q 3 and Q 4bond or a mono- or bi-cyclic heterocyclyl, optionally substituted by one or more of Me, Et, halo, amino, hydroxy or pseudohalo; R 9>as L but not a bond; and T : N, O or S. Full definitions are given in the DEFINITIONS (Full Definitions) field. [Image] [Image] ACTIVITY : Cytostatic; Antiinflammatory; Immunosuppressive; Virucide; Anti-HIV; Dermatological; Nootropic; Neuroprotective; Nephrotropic; Vulnerary; Antibacterial; Fungicide; Antiparasitic; Antipsoriatic; Osteopathic; Cardiovascular-Gen; Vasotropic; Gastrointestinal-Gen. MECHANISM OF ACTION : Kinase inhibitor; Polo-like kinase (PLK) inhibitor. In a trial, (1) was found to have EC 50 against recombinant human PLK1 of below 5, generally 1 mu M. No results for specific compounds were given.