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3-(1-substituted-4-piperazinyl)-1H-indazoles

  • US 4,954,503 A
  • Filed: 09/11/1989
  • Issued: 09/04/1990
  • Est. Priority Date: 09/11/1989
  • Status: Expired due to Term
First Claim
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1. A compound of the formula ##STR39## wherein R1 is hydrogen, lower alkyl, arylloweralkyl, acyl, cycloalkylloweralkylene, and phenylsulfonyl;

  • wherein the term "aryl" signifies a phenyl group optionally substituted by one or more hydrogen or halogen atoms or loweralkyl, loweralkoxy, trifluoromethyl, nitro or amino groups;

    the term "cycloalkyl" refers to a saturated hydrocarbon possessing at least one carbocyclic ring of three to seven carbon atoms; and

    the term "acyl" refers to a substituent having the formula loweralkyl ##STR40## and R2 is hydrogen, lower alkyl, hydroxyloweralkyl of the formula ##STR41## where Z is selected from hydrogen, halogen, loweralkoxy, CF3, NO2 and NH2 ;

    ##STR42## where Z is as defined above, ##STR43## where Z is as defined above;

    ##STR44## where R3 and R4 are each independently hydrogen and loweralkyl;

    ##STR45## where Z is as defined above;

    ##STR46## where R'"'"' and R" are each independently hydrogen and loweralkyl;

    X is hydrogen, loweralkyl, hydroxyl, halogen, loweralkoxy, CF3, NO2 ;

    n is an integer of 1 to 4, with the proviso that if X is a chlorine atom attached at the 5 or 6 position of the benzene ring, R2 cannot be hydrogen or loweralkyl and R1 cannot be hydrogen or ##STR47## the pharmaceutically acceptable acid addition salts thereof; and

    where applicable the geometric and optical isomers thereof and the racemic mixtures thereof.

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