The invention relates to new substituted pyridinyl-pyrimidines of formula 1 wherein ring A is a five-membered saturated or unsaturated carbocyclic ring which optionally comprises one, two or three heteroatoms each independently from each other selected from the group N, S and O, wherein R1, R2, R4, R3, R5 and R6 are defined as in claim 1 and wherein ring A is further optionally substituted by one or two further substituents and the pharmaceutically acceptable salts, diastereomers, enantiomers, racemates, hydrates and solvates of the aforementioned compounds.