Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1989-11-24
1990-06-26
Ramsuer, Robert W.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
544372, 546199, 548429, C07D48704
Patent
active
049373412
ABSTRACT:
There are disclosed various derivatives of physostigmine and related compounds of the formula below, ##STR1## where X, R.sub.1, R.sub.2 and R.sub.3 are as defined in the specification, which compounds are useful for alleviating various memory dysfunctions characterized by a cholinergic deficit such as Alzheimer's disease.
REFERENCES:
patent: 4791107 (1988-12-01), Hamer et al.
Hoechst-Roussel Pharmaceuticals Inc.
Ikeda Tatsuya
Ramsuer Robert W.
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