abstract |
The invention concerns pyrimidine derivatives of Formula (I) wherein each of p, R 1 , R 2 , q, R 3 , r, R 4 , X 1 and Q 1 have any of the meanings defined in the description; processes for their preparation, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use in the production of an anti-proliferative effect in a warm-blooded animal such as man. |