The present invention is directed to compounds of formula I-V and tautomers thereof or pharmaceutically acceptable salts, esters, and prodrugs thereof which are inhibitors of syk kinase. The present invention is also directed to intermediates used in making such compounds, the preparation of such a compound, pharmaceutical compositions containing such a compound, methods of inhibition syk kinase activity, methods of inhibition the platelet aggregation, and methods to prevent or treat a number of conditions mediated at least in part by syk kinase activity, such as undesired thrombosis and Non Hodgkin's Lymphoma.
本发明涉及公式I-V化合物及其互变异构体或药学上可接受的盐、酯和前药,这些化合物是syk激酶
抑制剂。本发明还涉及制备这些化合物所使用的中间体,制备这种化合物的方法,含有这种化合物的药物组合物,抑制syk激酶活性的方法,抑制血小板聚集的方法,以及预防或治疗至少部分通过syk激酶活性介导的多种疾病,如不良血栓形成和非何杰
金淋巴瘤的方法。