##STR1## Platelet activating factor antagonists of formula (I), in which R.sup.2 is optionally substituted phenyl, R.sup.1 is H, alkyl or arylalkyl, Het is an optionally substituted N-containing heterocyclic group optionally fused to a phenyl or a further heterocyclic ring, and Z completes an optionally substituted carbocyclic or heterocyclic ring having a carbonyl group attached to the 5-position of the dihydropyridine ring. The compounds are useful for treating allergic and inflammatory conditions.
公式(I)中的血小板活化因子拮抗剂,其中R.sup.2是可选取代的苯基,R.sup.1是氢、烷基或芳基烷基,Het是可选取代的含氮杂环基团,可选择与苯基或其他杂环环融合,Z完成一个可选取代的环烷基或杂环基,其在
二氢吡啶环的5位附有一个羰基基团。这些化合物可用于治疗过敏和炎症疾病。