Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-06-02
1991-02-05
Berch, Mark L.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
514248, 544237, 544239, A61K 3140, A61K 3142, A61K 3150, C07D20946
Patent
active
049905090
ABSTRACT:
A series of novel alkanesulphonamidophenyl-N-alkyl-N-(heterocyclic-alkyl) alkylamine derivatives have been prepared, including their pharmaceutically acceptable salts. These compounds are useful in therapy as anti-arrhythmic agents and therefore, are of value in the treatment of various cardiac arrythmias. Said sulfonamide base compounds are of the formula: ##STR1## wherein R and R.sup.1 are each C.sub.1 -C.sub.4 alkyl; X is --CH.sub.2 --, --CO--or --CO(OH)--; n is two, three or four; and "Het--" is a nitrogen-containing heterocyclic group wherein said heterocyclic group is phenyl or benzyl-substituted 2H-pyridazin-3-on-2-yl, or it is 2H-phthalazin-1-on-2-yl, 4-halo-2H-phthalizin-1-on-2-yl or 4-(C.sub.1 -C.sub.4 alkyl)-2H-phthalazin-1-on-2-yl, 2H-isoindolin-1-on-2-yl, 3H-quinazolin-4-on-3-yl, 2H-3,4-dihydroisoquinol-1-on-2-yl, 2H-isoquinol-on-2-yl, 1H-3,4-dihydroquinol-2-on-1-yl, benzoxazol-2-on-3-yl, quinol-2-on-1-yl, quinol-2-yl or indol-2-yl, each optionally mono substituted with halogen or C.sub.1 -C.sub.4 alkyl on the benzene portion of the respective fused ring moieties.
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Arrowsmith John E.
Cross Peter E.
Thomas Geoffrey N.
Berch Mark L.
Ginsburg Paul H.
Pfizer Inc.
Richardson Peter C.
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