The present invention relates to 1 H-pyrazolo[3,4-b]pyridine compounds of the formula (I) in which R1, R2, R3 and R4 are defined as indicated below. The compounds of the formula I are protein kinase C (PKC) inhibitors, and are useful for the treatment of diseases associated with diabetes and diabetic complications, such as, diabetic nephropathy, diabetic neuropathy and diabetic retinopathy, for example. The invention furthermore relates to the use of compounds of the formula, in particular as active ingredients in pharmaceuticals, and pharmaceutical compositions comprising them.
本发明涉及式(I)的1H-
吡唑并[3,4-b]
吡啶化合物,其中R1、R2、R3和R4的定义如下所示。式I的化合物是蛋白激酶C(PKC)
抑制剂,对于治疗与糖尿病及糖尿病并发症相关的疾病,如糖尿病肾病、糖尿病神经病变和糖尿病视网膜病变等,具有益处。此外,本发明还涉及利用该式化合物,特别是作为药物中的活性成分以及包含它们的药物组合物。