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5-(Phenyl)-1,6-naphthyridin-2(1H)-ones, their cardiotonic use and preparation

  • US 4,560,691 A
  • Filed: 07/13/1984
  • Issued: 12/24/1985
  • Est. Priority Date: 07/13/1984
  • Status: Expired due to Fees
First Claim
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1. 1-R-5-Ar-1,6-naphthyridin-2(1H)-one having the formula ##STR4## or acid-addition or cationic salt thereof, where R is hydrogen or methyl and Ar is phenyl or phenyl substituted by a member selected from methyl, ethyl, methoxy, ethoxy, hydroxy, amino, acetylamino, methanesulfonylamino, bromo, chloro, fluoro, nitro, cyano or carbamyl.

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