Treatment of cognitive disorders with piperazine derivatives
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United States of America Patent
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Oct 27, 1998
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N/A
app pub date -
May 3, 1995
filing date -
Nov 5, 1992
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Expired
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Abstract
Piperazine derivatives of formula (I) are useful in the treatment of cognitive disorders. In formula (I), X is a group of (IIa): --(CH.sub.2).sub.n CR.sup.2 R.sup.3 CONR.sup.4 R.sup.5 or (IIIb): --A--NR.sup.6 COR.sup.7 where n, A, R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 have specified meanings. ##STR1##
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