| 摘要 |
The compounds of the general Formula I, wherein Rstands for hydrogen or lower alkyl; one of symbols X and Y stands for hydrogen or halogen and the other represents a group of the general Formula II, Ris hydrogen or lower alkyl; n is 1, 2 or 3; Ris hydrogen, lower alkyl or aryl-lower alkyl; Z is -0-; or Rand Z together with the intermediate atoms form a piperazino ring; Q and W independently from each other stands for -CH= or -N=; and R, Rand Rcan be the same or different and stand for hydrogen, halogen, trifluoromethyl or lower alkoxy; or Rand Rtogether form an ethylenedioxy group) and pharmaceutically acceptable salts thereof can be used for the treatment or prophylaxis of malfunctions of memory and/or cognitive decline or prevention of decline of learning abilities. |
