Chemical compounds

摘要

The invention relates to compounds of the formula (I): wherein: ring C is 9 or 10-membered bicyclic heteroaromatic group containing at least one nitrogen atom in the ring attached to Z and optionally containing a further 1-3 heteroatoms, selected independenly from 0, S, and N, with the proviso that ring C is not a quinazoline, quinoline or cinnoline group; either any one of G₁, G₂, G₃, G₄ and G₅ is nitrogen and the other four are -CH-, or G₁, G₂, G₃, G₄ and G₅ are all -CH-; Z is -O-, NH-, -S-, CH₂- or a direct substituents R¹ may be attached at any free carbon atom of the indole, azaindole or indazole group; m is an integer from 0 to 2; R^b represents hydrogen or another value as defined herein; R¹ represents hydrogen, hydroxy, halogeno, C_1-4alkyl, or any other value as defined herein; R² represents hydrogen, hydroxy, halogeno, cyano, nitro, trifluoromethyl, C_1-3alkyl, C_1-3alkoxy, C_1-3alkylsulphanyl, -NR³R⁴ (wherein R³ and R⁴, which may be the same or different, each represents hydrogen or C_1-3alkyl), or R⁵X¹- (wherein R⁵ and X¹ are as defined herein) and salts thereof, processes for the preparation of such compounds, pharmaceutical compositions containing a compound of formula (I) or a pharmaceutically acceptable salt thereof as active ingredient ans the use of a compound of formula (I) in the manufacture of a medicament for the production of an antiangiogenic and/or vascular permeability reducing effect in warm-blooded animals. The compounds of formula (I) and the pharmaceutically acceptable salts thereof inhibit the effects of VEGF, a property of value in the treatment of a number of disease state including cancer ad rheumatoid arthritis.