Disclosed are a compound of the formula ##STR1## wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl or a group --(CH.sub.2).sub.n COOR.sup.3 in which n is an integer of 1 to 4 and R.sup.3 is hydrogen or C.sub.1 -C.sub.6 alkyl, and R.sup.2 is a group --CH.dbd.CH--R.sup.4 or --CH.sub.2 --CH.sub.2 --R.sup.4 in which R.sup.4 is substituted or unsubstituted phenyl or a substituted or unsubstituted 5-membered heterocyclic group, or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition comprising the same as an active ingredient. The compounds have an excellent chemical mediator inhibitory activity.
本发明涉及一种化合物,其
化学式为##STR1##其中R.sup.1是C.sub.1-C.sub.6烷基或--(CH.sub.2).sub.nCOOR.sup.3基团,其中n是1到4的整数,R.sup.3是氢或C.sub.1-C.sub.6烷基,R.sup.2是--CH.dbd.CH--R.sup.4或--CH.sub.2--CH.sub.2--R.sup.4基团,其中R.sup.4是取代或未取代苯基或取代或未取代的5-成员杂环基团,或其药学上可接受的盐,并且包括该化合物作为活性成分的制药组合物。该化合物具有出色的
化学介质抑制活性。