Pyrimidine derivatives for the treatment of COPD, Asthma, Allergic conjunctivitis, allergic rhinitis, treatment for atopic dermatitis and psoriasis, cancer, hepatitis B, hepatitis C, HIV, HPV, bacterial infections and dermatosis

摘要

The present Invention provides compounds of formula (i) wherein R1, R2, R3 and R4 are as defined in the specification, and their pharmaceutically acceptable Salts.