A compound of formula (I)
where one of A1, A2 or A3 is N, and the others are independently selected from CH or N; ring B is a fused 5 or 6-membered carbocyclic or heterocyclic ring which is optionally substituted as defined in the specification, and R1, R2, R3, R4, and n are as defined in the specification.
The compounds are inhibitors of EphB4 or EphA2 and therefore may be useful in pharmaceutical compositions for the treatment of conditions such as cancer.
化合物的公式为(I),其中A1,A2或A3中的一个是N,其他的独立地选择自CH或N; 环B是融合的5或6成员的碳环或杂环,根据规范定义可以选择性地取代,而R1,R2,R3,R4和n如规范中所定义。这些化合物是EphB4或EphA2的
抑制剂,因此可能在制备用于治疗癌症等疾病的药物组合物方面有用。