There is provided compounds of formula (I): wherein R1, R2 and R3 have meanings given in the description, and pharmaceutically-acceptable esters, amides, solvates or salts thereof, which compounds are useful in the treatment of diseases in which inhibition of a protein or lipid kinase (e.g. PI3-K, particularly class I PI3K) is desired and/or required, and particularly in the treatment of cancer.
提供了以下式(I)的化合物:其中R1、R2和R3的含义如描述中所示,以及其药学上可接受的酯、酰胺、溶剂合物或盐,这些化合物在治疗需要或期望抑制蛋白激酶或脂质激酶(例如
PI3-K,特别是I类
PI3K)的疾病中非常有用,特别是在癌症治疗中。