Heteroaryl amines as novel acetyl cholinesterase inhibitors
 Compounds of the formula ##STR1## wherein ring A, ring B, ring D, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6,R.sup.11, R.sup.12, R.sup.13, E, G, X and P are as defined below. The compounds of formula I are cholinesterase inhibitors and are useful in enhancing memory in patients suffering from dementia and Alzheimer's disease. 
Pfizer Inc
A A C C C C A C
A61P A61P C07D C07D C07D C07D A61P C07D
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Yuhpyng Liang Arthur Adam
Chen Nagel