2,7-substituted octahydro-1H-pyrido?1,2-a!pyrazine derivatives
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United States of America Patent
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Dec 22, 1998
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app pub date -
Mar 26, 1997
filing date -
Sep 30, 1994
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Abstract
Substituted pydrido?1,2-a!pyrazines of general formula I wherein Ar and Ar.sup.1 represent various carbocyclic and heterocyclic aromatic rings; A represents O, S, SO, SO.sub.2, C.dbd.O, CHOH, or --(CR.sup.3 R.sup.4) and n is 0-2 as well as precursors thereto are ligands for dopamine receptor subtypes within the body and are therefore useful in the treatment of disorders of the dopamine system. ##STR1##
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