1,3,4 THIA D1 AZOLO 3,2-A 1,2,3 TRIAZOLO 4,5-D PYRIMIDIN-9 1H -ONES

摘要

Novel triazolopyrimidine compounds represented by the formula (I) and physiologically acceptable salts thereof are disclosed. These compounds have an excellent anti-allergic activity in oral administration and are useful for treatment and prophylaxis of allergic diseases such as bronchial asthma, allergic gastro-intestinal disorders, allergic rhinitis, hay fever, urticaria and the like.