Quinazoline compounds for inflammatory disorders such rheumatoid arthritis or osteoarthritis

摘要

Pharmaceutical compositions containing compounds of formula shown above, Wherein R1 and R19 independently represent hydrogen, alkyl C1 to 6, alkoxy C1 to 6, alkylthio C1 to 6, halogen, hydroxyl or amino; R2 represent H or alkyl; R3 represents phenyl, a 6-membered heterocyclic aromatic ring containing one or two nitrogen atoms, or a 5-membered heterocyclic aromatic ring containing 1 to 3 heteroatoms selected from O, N and S, which phenyl or heterocyclic aromatic ring may be optionally substituted by alkyl C1 to 6, alkoxy C1 to 6, halogen, hydroxyl, alkylthio C1 to 6, cyano, trifluoromethyl, nitro, hydroxymethyl, amino, a group -(CH2)c.NHCO2R10, a group -(CH2)c.NR5R6, or a group -CO2R11, or R3 represents hydrogen or alkyl C1 to 8, which alkyl group may be optionally substituted by amino or a group -NHCO2R10; and R4 represents hydrogen or alkyl C1 to 6; or R3 and R4 taken together represent a group (CH2)a.Z.(CH2)b; a and b independently represent an integer 1-3 c represents an integer 0 to 2; The compounds may especially be used in the treatment of inflammatory disorders.