The compounds of formula (I) wherein A and R1-R5 are as defined in the description, are inhibitors of Vascular Endothelial Growth Factor and are useful as angiogenesis inhibitors and antiproliferative agents.
式(I)中的化合物,其中A和R1-R5如描述中所定义,是血管内皮生长因子的
抑制剂,可用作抗血管生成剂和抗增殖剂。