| abstract |
Compounds of structure (I), in which R1 is hydrogen, hydroxy, C1-4alkoxy, halo C1-4alkoxy, C3-7cycloalkyle-C1-4alkoxy, aryloxy or arylC1-4alkoxy; R2 is halogen, C1-4alkyl, CN, NO2 or CF3; R3 is hydrogen or C1-4alkyl; R4 and R5 are the same or different and are both hydrogen or C1-4alkyl or associated with a nitrogen atom to which they are attached to form a ring; and their pharmaceutically acceptable salts, solvates and hydrates for use when a 5-HT2 or 5-HT1 agonist is indicated. New compounds of structure (I), processes for the preparation of these compounds and compositions containing them. |