| abstract |
Benzo[4,5]pyrano[2,3c]pyrrole derivatives of the general formula: ##STR1## or pharmaceutically acceptable acid addition salts thereof, in which R 1 and R 2 represent hydrogen, alkyl, alkoxy, aralkoxy, hydroxy, halogen, methylenedioxy or acyloxy, and R 3 represents hydrogen, alkyl, aralkyl or aminoalkyl, are potent dopamine agonists. |