| abstract |
Compound of formula (I): n nare disclosed in which:n R 1 is an aryl group, optionally substituted by 1, 2, 3 or 4 substituents which may be the same or different selected from C (1-6) alkyl, C (1-6) alkoxy, C (1-6) alkylthio, hydroxy, halogen, CN, and mono to perfluoro-C (1-4) alkyl; R 2 is halogen, C (1-3) alkyl, C (1-3) alkoxy, hydroxyC (1-3) alkyl, C (1-3) alkylthio, C (1-3) alkylsulphinyl, aminoC (1-3) alkyl, mono- or di-C (1-3) alkylaminoC (1-3) alkyl, C (1-3) alkylcarbonylaminoC (1-3) alkyl, C (1-3) alkoxyC (1-3) alkylcarbonylaminoC (1-3) alkyl, C (1-3) alkylsulphonylaminoC (1-3) alkyl, C (1-3) alkylcarboxy, C (1-3) alkylcarboxyC (1-3) alkyl, and R 3 is hydrogen, halogen, C (1-3) alkyl, or hydroxyC (1-3) alkcyl; or R 2 and R 3 together with the pyrimidone ring carbon atoms to which they are attached form a fused 5-or 6-membered carbocyclic ring; or R 2 and R 3 together with the pyrimidone ring carbon atoms to which they are attached form a fused benzo or heteroaryl ring ring optionally substituted by 1, 2, 3 or 4 substituents which may be the same or different selected from halogen, C (1-4) alkyl, cyano, C (1-6) alkoxy, C (1-6) alkylthio or mono to perfluoro-C (1-4) alkyl; R 4 is hydrogen, C (1-6) alkyl which may be unsubstituted or substituted by 1, 2 or 3 substituents selected from hydroxy, halogen, OR 7 , COR 7 , carboxy, COOR 7 , CONR 9 R 10 , NR 9 R 10 , NR 7 COR 8 , mono- or di-(hydroxyC (1-6) alkyl) amino and N-hydroxyC (1-6) alkyl-N—C (1-6) allkylamino; or R 4 is Het-C (0-4) alkyl in which Het is a 5- to 7- membered heterocyclyl ring comprising N and optionally O or S, and in which N may be substituted by COR 7 , COOR 7 , CONR 9 R 10 , or C (1-6) alkyl optionally substituted by 1, 2 or 3 substituents selected from hydroxy, halogen, OR 7 , COR 7 , carboxy, COOR 7 , CONR 9 R 10 or NR 9 R 10 , for instance, piperidinyl-4-yl, pyrrolidin-3-yl; R 5 is an aryl or a heteroaryl ring optionally substituted by 1, 2, 3 or 4 substituents which may be the same or different selectd from C (1-6) alkyl, C (1-6) alkoxy, C (1-6) alkylthio, arylC (1-6) alkoxy, hydroxy, halogen, CN, COR 7 , carboxy, COOR 7 , NR 7 COR 8 , CONR 9 R 10 , SO 2 NR 9 R 10 , NR 7 SO 2 R 8 , NR 9 R 10 , mono to perfluoro-C (1-4) alkyl and mono to perfluoro-C (1-4) alkoxy; R 6 is an aryl or a heteroaryl ring which is further optionally substituted by 1, 2, 3 or 4 substituents which may be the same or different selected from C (1-18) alkyl, C (1-18) alkoxy, C (1-6) alkylthio, C (1-6) alkylsulfonyl, arylC (1-6) alkoxy, hydroxy, halogen, CN, COR 7 , carboxy, COOR 7 , CONR 9 R 10 , NR 7 COR 8 , SO 2 NR 9 R 10 , NR 7 SO 2 R 8 , NR 9 R 10 , mono to perfluoro-C (1-4) alkyl and mono to perfluoro-C (1-4) alkoxy, or C (5-10) alkyl; These compound are useful for treating diseases associated with abnormal activity of the phospholipase A 2 enzyme, for example athereosclosis. |