9-acylamino-tetrahydroacridine derivatives and memory enhancing

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

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514274, 514255, 514290, 514291, 514292, 514297, 514284, 514285, 514286, 514293, 514287, 514289, 546 70, 546 74, 546 93, 546 97, 546 63, 546 61, 546 62, 546 64, 546 80, 546 81, 546 89, 546102, 546103, 546104, 546105, 546106, 546 82, 546 83, 546 84, 544316, 544361, A61K 31505, A61K 31435, A61K 31495, C07D40112, C07D21908, C07D22118, C07D22116, C07D22116

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049854305

ABSTRACT:
There are disclosed a 9-acylamino-tetrahydroacridine derivative represented by the following formula (I): ##STR1## wherein R ##STR2## are as defined in the specification, its optical antipode or pharmaceutically acceptable acid addition salt thereof and a memory enhancing agent containing the same as an active ingredient.

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