Quinolyl- and isoquinolyl-methoxyphenyl-dithioacetyl derivatives useful as antiinflammatory agents

The invention relates to dithioacetal compounds having 5-lipoxygenase-inhibiting activity, of the formula: ##STR1## wherein R.sup.1 is lower alkyl, di-(lower)alkylamino, aryl, or heterocyclic group which may have one or more substitutents selected from halogen, lower alkyl, lower alkoxy and phenyl, PA1 R.sup.2 and R.sup.3 are each lower alkyl, aryl or ar-(lower)alkyl, or R.sup.2 and R.sup.3 are together to form 1,3-dithian ring, PA1 R.sup.4 is hydrogen or lower alkoxy, and PA1 n is 0 or an integer 1 to 4 and pharmaceutically acceptable salts thereof.