PHTHALAZINONE DERIVATIVES

摘要

A compound of the formula (I): wherein: A and B together represent an optionally substituted, fused aromatic ring; X is selected from H and F; R¹ and R² are independently selected from H and methyl; R^N1 is selected from H and optionally substituted C_1-7 alkyl; R^N2 is selected from H, optionally substituted C_1-7 alkyl, C_3-7 heterocyclyl and C_5-6 aryl; or R^N1 and R^N2 and the nitrogen atom to which they are bound form an optionally substituted nitrogen containing C_5-7 heterocyclic group.