The Upjohn Co.

Barbro A Ekman

Per A Carlsson

Hakan V Wikstrom

Kjell A Svensson

Bengt R Andersson

Nils P Stjernlof

Nils A Svensson

This invention is therapeutically useful tetralins and pharmaceutically acceptable acid addition salts thereof of the formula ##STR1## wherein X.sub.1 is halogen, CF.sub.3, --OR.sub.3, or --SR.sub.4 ; wherein R.sub.3 is alkyl(C.sub.1 -C.sub.8); alkenyl(C.sub.1 -C.sub.8); --CH.sub.2 -cycloalkyl(C.sub.3 -C.sub.8) or benzyl; wherein R.sub.4 is alkyl(C.sub.1 -C.sub.3); wherein X.sub.2 is hydrogen, CF.sub.3 or halogen; wherein R.sub.7 is hydrogen or methyl; wherein R.sub.1 is hydrogen, alkyl(C.sub.1 -C.sub.3), or cyclopropylmethyl; wherein R.sub.2 is --CH.sub.2 -cycloalkyl(C.sub.3 -C.sub.8), alkyl(C.sub.1 -C.sub.8), --(CH.sub.2).sub.q --R.sub.5 or --CH.sub.2 CH.sub.2 --Z--(CH.sub.2).sub.r CH.sub.3 ; wherein R.sub.5 is phenyl, 2-thiophene or 3-thiophene; wherein Z is oxygen or sulfur; and wherein p is one or 2, q is 2 or 3, and r is zero to 3; with the provisos that (1) when X.sub.1 is --OR.sub.3, X.sub.2 is halogen or CF.sub.3 ; and (2) when X.sub.1 is halogen, X.sub.2 is hydrogen, and p is 2, X.sub.1 is in a position other than the 8-position. These compounds are useful to treat central nervous system disorders.

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Gothenburg, Sweden

Barbro A Ekman