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Benzopyran class III antiarrhythmic agents

  • US 5,240,943 A
  • Filed: 12/19/1991
  • Issued: 08/31/1993
  • Est. Priority Date: 12/19/1991
  • Status: Expired due to Term
First Claim
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1. A compound of the formula ##STR15## or a pharmaceutically acceptable salt;

  • wherein n is 0, 1 or 2;

    wherein R is H or lower alkyl of 1 to 6 atoms;

    wherein X is selected from the group consisting of hydrogen, methane sulfonamide, nitro, cyano, alkoxy of 1 to 6 carbon atoms and hydroxy; and

    wherein Ar is selected from the group consisting of tetrahydronaphthalenyl, Ph--CH═

    CH-- and phenyl all optionally substituted by methane sulfonamide, nitro, cyano or imidazolyl, with the proviso that when n is 1Ar is other than phenyl.

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