A benzenesulfonamide derivative represented by the following general formula: ##STR1## wherein R.sup.1 represents a hydrogen atom, a lower alkyl group, a lower alkoxy group or a halogen atom; R.sup.2 represents a C.sub.1 -C.sub.10 straight- or branched-chain alkyl group, a C.sub.3 -C.sub.8 cycloalkyl group which may be substituted with one or more C.sub.1 -C.sub.6 alkyl groups on its ring, a C.sub.1 -C.sub.6 alkyl group substituted with one or more C.sub.3 -C.sub.8 cycloalkyl groups, 1-adamantylmethyl group, 2-norbornylmethyl group, or a C.sub.1 -C.sub.6 alkyl group substituted with one or more phenyl groups whose benzene ring may have one or more substituents; R.sup.3 represents a hydrogen atom or a lower alkyl group; and n is an integer of from 2 to 4, and a pharmacologically acceptable salt thereof. The present compounds have thromboxane A.sub.2 antagonistic activity, leucotriene antagonistic activity and the like and useful as a platelet aggregation inhibitor, antithrombotic agent, antiasthmatic agent and antiallergic agent.
以下是通用公式表示的苯磺酰胺衍
生物:其中R.sup.1代表氢原子、低碳基团、低碳氧基团或卤原子;R.sup.2代表C.sub.1-C.sub.10直链或支链烷基团、C.sub.3-C.sub.8环烷基团,其环上可能取代一个或多个C.sub.1-C.sub.6烷基团,一个或多个C.sub.3-C.sub.8环烷基团取代的C.sub.1-C.sub.6烷基团,1-藤黄醇甲基团,2-去
甲基环辛烷基团,或一个或多个苯基团取代的C.sub.1-C.sub.6烷基团,其苯环可能有一个或多个取代基;R.sup.3代表氢原子或低碳基团;n是2到4之间的整数,以及其药理学上可接受的盐。这些化合物具有血栓素A.sub.2拮抗活性、
白三烯拮抗活性等,并可用作血小板聚集
抑制剂、抗血栓药物、抗哮喘药物和抗过敏药物。