The present invention relates to compounds of formula (Ia), (Ib) or (Ic): to pharmaceutically acceptable salts therefore and to pharmaceutically acceptable solvates of said compounds and salts, wherein the substituents are defined herein; to compositions containing such compounds; and to the uses of such compounds in the treatment of various diseases, particularly asthma, COPD, allergic rhinitis, chronic sinusitis, atopic dermatitis, psoriasis, rosacea, alopecia, allergic conjunctivitis and dry eye disease.