Quinazoline derivatives of formula (I):wherein A is 5-membered heteroaryl containing a nitrogen atom and one or two further nitrogen atoms compositions containing them, processes for their preparation and their use in therapy.本發明係關於一種式(I)之喹唑啉衍生物:其中A為含有氮原子及一或二個其他氮原子之5-員雜芳基;本發明另關於含該衍生物之組合物,其製備方法及其治療上之用途。