(EN) This invention relates to the discovery of substituted analogues of the selective platelet lowering agent anagrelide with reduced potential for cardiovascular side-effects which should lead to improved patient compliance and safety in the treatment of myeloproliferative diseases. More specifically, the present invention relates to certain imidazoquinazoline derivatives which have the general formula shown below wherein the substituents have the meanings defined in claim 1, and which have utility as platelet lowering agents in humans. The compounds of the present invention function by inhibiting megakaryocytopoeisis and hence the formation of blood platelets.
(ZH) 本发明涉及发现选择性血小板减少剂阿那格雷的取代的类似物，其具有降低的心血管副作用潜在性，因此应该在骨髓增生性疾病的治疗中带来改善的患者顺应性和安全性。更具体地，本发明涉及某些咪唑并喹唑啉衍生物，其具有下面示出的通式，其中取代基具有权利要求1中所定义的含义，并且所述衍生物具有在人中作为血小板减少剂的功用。本发明的化合物通过抑制巨核细胞生成、并因此抑制血小板的形成而发挥作用。
