Fused 5 ring heterocyclic compounds, their preparation, and their anti-arrhythmic and diuretic use

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United States of America Patent

PATENT NO 4716162
SERIAL NO

06755474

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Fused ring compounds of formula (I): ##STR1## (where R.sup.1 -R.sup.4, X.sup.1 and X.sup.2 represent hydrogen or various substituents, n and m are 1-3 and 2-7 respectively, the dotted lines are double or single bonds and Y is one oxygen or two hydrogens) have magnificent anti-arrhythmic activity, diuretic activity and the ability to improve brain function.

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Patent Owner(s)

  • SANKYO COMPANY, LIMITED

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iwata, Nobuyoshi Hiromachi, JP 11 35
Koike, Hiroyuki Hiromachi, JP 100 1341
Kumakura, Seiji Hiromachi, JP 7 43
Morisawa, Yasuhiro Hiromachi, JP 13 57
Shimoji, Yasuo Hiromachi, JP 14 140
Tomita, Kuniyuki Hiromachi, JP 2 3

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