Compounds having CRTH2 antagonist activity

A method of treatment of a disease or condition selected from the group consisting of allergic asthma, perennial allergic rhinitis, seasonal allergic rhinitis, atopic dermatitis, contact hypersensitivity, conjunctivitis, eosinophilic bronchitis, food allergies, eosinophilic gastroenteritis, inflammatory bowel disease, ulcerative colitis, Crohn's disease, mastocytosis, and autoimmune diseases,

• comprising administering a compound of general formula (I)
• wherein R is phenyl optionally substituted with one or more halo substituents;
• or a pharmaceutically acceptable salt thereof;
• or
• a compound of general formula (II)
• wherein R is as defined above;
• and
• R1 is C1-C6 alkyl, aryl, (CH2)mOC(═O)C1-C6alkyl, (CH2)mN(R11)2, or CH((CH2)mO(C═O)R12)2;
• m is 1 or 2;
• R11 is hydrogen or methyl;
• R12 is C1-C18 alkyl;
• and one or more agents selected from the group consisting of
• other CRTH2 antagonists,
• Suplatast tosylate,
• β1 to β4 adrenoreceptor agonists,
• methylxanthanines,
• mast cell stabilisers,
• muscarinic receptor antagonists,
• antihistamines,
• α1 and α2 adrenoreceptor agonists,
• insulin-like growth factor (IGF-1) mimetics,
• matrix metalloprotease (MMP) inhibitors,
• modulators of chemokine receptor function,
• antiviral agents,
• antisepsis compounds,
• cardiovascular agents,
• CNS agents,
• Tryptase inhibitors,
• Platelet activating factor (PAF) antagonists,
• Interleukin converting enzyme (ICE) inhibitors,
• IMPDH inhibitors,
• Adhesion molecule inhibitors,
• Cathepsins,
• MAP kinase inhibitors,
• Glucose-6-phosphonate dehydrogenase inhibitors,
• Kinin-B1 and B2 receptor antagonists,
• Anti-gout agents,
• Xantine oxidase inhibitors,
• Uricosuric agents,
• Growth hormone secretagogues,
• Transforming growth factor beta (TGFβ),
• Platelet-derived growth factor (PGDF),
• Fibroblast growth factor,
• Granulocyte macrophage colony stimulating factor (GM-CSF),
• Capsaicin,
• Tachykinin NK1 and NK3 receptor antagonists,
• Elastase inhibitors,
• Induced nitric oxide synthase inhibitors (iNOS),
• Osteoporosis agents,
• anticholinergic agents,
• leukotriene antagonists,
• leukotriene biosynthesis inhibitors,
• phosphodiesterase inhibitors,
• anti-IgE antibody therapies,
• anti-infectives,
• anti-fungals,
• immunosuppressants,
• antiproliferative/antineoplastic drugs,
• antitumour antibiotics,
• antimitotic agents,
• topoisomerase inhibitors,
• cytostatic agents,
• oestrogen receptor down regulators,
• LHRH antagonists or agonists,
• progestogens,
• aromatase inhibitors,
• agents which inhibit cancer cell invasion,
• inhibitors of growth factor function,
• farnesyl transferase inhibitors,
• tyrosine kinase inhibitors,
• serine or threonine kinase inhibitors,
• antiangiogenic agents,
• vascular damaging agents,
• antisense therapies,
• gene therapy agents,
• immunotherapy agents,
• corticosteroids,
• hyaluronic acids,
• drugs which promote Th1 cytokine response,
• other antagonists of PGD2 acting at other receptors,
• inhibitors of phoshodiesterase type 4,
• drugs that modulate cytokine production,
• inhibitors of other TNF isoforms,
• non-selective COX-1/COX-2 inhibitors,
• COX-2 inhibitors,
• low dose methotrexate,
• lefunomide,
• ciclesonide,
• hydroxychloroquine,
• d-penicillamine,
• auranofin,
• parenteral or oral gold,
• drugs that modulate the activity of Th2 cytokines IL-4 and IL-5,
• PPAR-γ agonists,
• anti-RSV antibodies, and
• agents that may be used to treat rhinovirus infection,
• as a combined preparation for simultaneous, separate or sequential administration.