| 摘要 |
A compound selected from the group consisting of a compound of the formula <IMAGE> I wherein R1 is selected from the group consisting of <IMAGE> R4, R5, R7 and R8 are individually selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms, R6 is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, phenyl, halogen, alkoxycarbonyl of 2 to 5 carbon atoms, cyano, <IMAGE> R' and R'' are individually alkyl of 1 to 5 carbon atoms, R2 and R3 together form a member of the group consisting of <IMAGE> m is 1, 2 or 3, X1 and X2 are individually selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms, alkenyl of 2 to 5 carbon atoms, alkoxy of 1 to 5 carbon atoms, aralkoxy, aryloxy, halogen, azido and nitro or taken together form methylenedioxy and their non-toxic, pharmaceutically acceptable acid additon salts capable of treating memory disorders.
|
