The invention relates to compounds of formula (I), wherein: R2represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy, trifluoromethyl, cyano, amino, nitro, C2-4alkanoyl, C1-4alkanoylamino, C1-4alkoxycarbonyl, C1-4alkylthio, C1-4alkylsulphinyl, C1-4alkylsulphonyl, carbamoyl, {overscore (N)}—C1-4alkylcarbamoyl, {overscore (N)},{overscore (N)}-di(C1-4alkyl)carbamoyl, aminosulphonyl, {overscore (N)}—C1-4alkylaminosulphonyl, {overscore (N)},{overscore (N)}-di(C1-4alkyl)aminosulphonyl, C1-4alkylsulphonylamino, or a group R4X1wherein X1represents a direct bond, C2-4alkanoyl, —CONR5R6—, —SO2NR7R8— or —SO2R9— (wherein R5and R7, each independently represents hydrogen or C1-2alkyl and R6, R8and R9each independently represents C1-4alkyl and wherein R4is linked to R6, R8or R9) and R4represents an optionally substituted group selected from phenyl and a 5 or 6-membered heterocyclic group; n is an integer from 0 to 4, R1represents hydrogen, C1-4alkyl, C1-4alkoxymethyl, di(C1-4alkoxy)methyl or C1-4alkanoyl; m is an integer from 0 to 4; and R3represents hydroxy, halogeno, nitro, trifluoromethyl, C1-3alkyl, cyano, amino or R10X2(wherein X2represents a direct bond, —CH2—, or a single or double heteroatom linker group including —S—, —SO— and —NR15— (wherein R15represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl), and R10is an alkenyl or alkynyl chain optionally substituted by for example hydroxy, amino, nitro, alkyl, cycloalkyl, alkoxyalkyl, or an optionally substituted group selected from pyridone, phenyl and a heterocyclic ring, which alkyl, alkenyl or alkynyl chain may have a heteroatom linker group, or R10is an optionally substituted group selected from pyridone, phenyl and a heterocyclic ring. The compounds of formula (I) and the pharmaceutically acceptable salts thereof inhibit the effects of VEGF and FGF, properties of value in the treatment of a number of disease states including cancer and rheumatoid arthritis.