PHTHALAZINONE DERIVATIVES

摘要

A compound of the formula (I): wherein: A and B together represent an optionally substituted, fused aromatic ring; X and Y are selected from CH and CH, CF and CH, CH and CF and N and CH respectively; RC is selected from H, C1-4 alkyl; and R1 is selected from C1-7 alkyl, C3-20 heterocyclyl and C5-20 aryl, which groups are optionally substituted; or RC and R1 together with the carbon and oxygen atoms to which they are attached form a spiro-C5-7 oxygen-containing heterocyclic group, which is optionally substituted or fused to a C5-7 aromatic ring.