Design, synthesis, and preliminary pharmacological evaluation of 1,4- diazabicyclo[4.3.0]nonan-9-ones as a new class of highly potent nootropic agents
Several 4-substituted 1,4-diazabicyclo[4.3.0]nonan-9-ones have been synthesized and tested in vivo on mouse passive avoidance test, to evaluate their nootropic activity. The results show that they represent a new class of nootropic drugs with a pharmacolo