Naphthalene anti-psoriatic agents

A compound of the formula ##STR9## wherein:

• R.sup.1 and R.sup.2 are the same and are lower alkoxy of one to six carbon atoms or phenoxy optionally substituted by one or two lower alkyl of one to four carbon atoms, lower alkoxy of one to four carbon atoms or halo;
• R.sup.3 is lower alkyl of one to six carbon atoms, lower alkoxy of one to six carbon atoms, or halo and m is 0, 1 or 2 or R.sup.3 is phenyl optionally substituted by one or more substituents selected from the group consisting of lower alkyl, lower alkoxy, halo, lower acyl, lower acyloxy, cyano, nitro, amino, and lower acylamino, phenyl-lower-alkyl wherein the phenyl is optionally substituted by one or more substituents selected from the group consisting of lower alkyl, lower alkoxy, halo, lower acyl, lower acyloxy, cyano, nitro, amino, and lower acylamino, phenyl-lower-alkoxy wherein the phenyl is optionally substituted by one or more substituents selected from the group consisting of lower alkyl, lower alkoxy, halo, lower acyl, lower acyloxy, cyano, nitro, amino, and lower acylamino, amino, lower alkylamino, lower dialkylamino, halo, cyano, or S(O).sub.n R wherein R is lower alkyl of one to six carbon atoms;
• phenyl optionally substituted by one or more substituents selected from the group consisting of lower alkyl, lower alkoxy, halo, lower acyl, lower acyloxy, cyano, nitro, amino, and lower acylamino;
• phenyl-lower-alkyl wherein the phenyl is optionally substituted by one or more substituents selected from the group consisting of lower alkyl, lower alkoxy, halo, lower acyl, lower acyloxy, cyano, nitro, amino, and lower acylamino;
• or heterocyclic aryl selected from the group consisting of thiapyranyl, benzothiapyranyl, furyl, pyrrolyl, imidazolyl, pyrazolyl, pyridinyl, pyrimidinyl, indolyl, quinolinyl, and imidazolyl wherein the heterocyclic aryl is optionally substituted by one or more substituents selected from the group consisting of lower alkyl, lower alkoxy, halo and cyano and the pharmaceutically acceptable acid addition salts thereof;
• and m is 1 and n is 0, 1 or 2;
• and
• one of X or Y is C(O)W and the other X or Y is hydrogen
• wherein
• W is alkyl of one to seven carbon atoms, phenyl or benzyl optionally substituted with one or two lower alkyl of one to four carbon atoms, lower alkoxy of one to four carbon atoms or halo.