| abstract |
PCT No. PCT/GB92/02399 Sec. 371 Date Jul. 7, 1994 Sec. 102(e) Date Jul. 7, 1994 PCT Filed Dec. 24, 1992 PCT Pub. No. WO93/14076 PCT Pub. Date Jul. 22, 1993. <IMAGE> (I) This invention concerns compounds of formula (I) where A is an alkylene chain of 2 to 5 carbon atoms optionally substituted by one or more lower alkyl groups, R represents hydrogen or one or two same or different lower alkyl groups, R1 is a monocyclic aryl or heteroaryl radical, R2 is a mono or bicyclic aryl radical and R3 is cycloalkyl. The compounds of the invention are useful as antidepressant, antianxiety, or hypotensive agents; or for regulating the sleep/wake cycle, feeding behavior and/or sexual function; and for treating cognition disorders. |