| abstract |
Compounds of formula I ##STR1## wherein R 1 is hydrogen or lower alkyl, n R 2 , R 3 and R 4 are, independently, hydrogen, halogen lower alkyl, lower alkoxy or CONR 5 R 6 wherein R 5 and R 6 are, independently, hydrogen or lower alkyl, and x y is --CH 2 --CH═ or --CH═C═. n are useful as central dopaminergic agents and prolactin secretion inhibitors. |