| abstract |
Pteridine compounds of formula (I) in which R 1 , R 2 , R 3 and R 4 are as specified in the claims, processes and intermediates used in their preparation, pharmaceutical compositions containing them and their use in the treatment of inflammatory diseases such as psoriasis, rheumatoid arthritis, diseases in which angiogenesis is assocated with raised CXCR2 chemokine levels (diabetic retinopathy) and COPD. The compounds are ligands for chemokine receptors and medical indications mentioned in the description include: diseases of the respiratory tract (COPDD, asthma, bronchitis, rhinitis, fibroid lung, pneumonia, etc.), diseases of the bones and joints (arthritis, etc.), skin-diseases (psoriasis, etc), diseases of the gastrointestinal tract, diseases in other tissues and systemic disease (multipe sclerosis, atherosclerosis, AIDS, type 1 diabetes, leprosy, sepsis, etc.), allograft rejection, cancers, cystic fibrosis, stroke, burn wounds, skin ulcers, reproductive disease and more. |