A novel series of optionally substituted 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-N-(1H-tetrazol-5-yl)carboxamides is provided for use as inhibitors of allergic reactions. The compounds exhibit antiallergy activity by both oral and parenteral routes of administration.
提供了一种新的系列可选取代的4-
氧代-4H-
吡啶[1,2-a]
嘧啶-3-N-(
1H-四唑-5-基)羧
酰胺,用作抗过敏反应的
抑制剂。这些化合物通过口服和静脉注射途径表现出抗过敏活性。