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Derivatives of imidazo(4,5-b)pyridines

  • US 4,003,908 A
  • Filed: 03/11/1976
  • Issued: 01/18/1977
  • Est. Priority Date: 03/11/1976
  • Status: Expired due to Term
First Claim
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1. A compound of the formula ##STR54##wherein R is hydrogen or lower alkyl;

  • R1 is hydrogen, lower alkyl, phenyl, phenyl-lower alkyl or cyclo-lower alkyl;

    R2 is hydrogen, lower alkyl, phenyl or phenyl-lower alkyl;

    R3 is lower alkyl or lower alkenyl;

    R4 is hydrogen, lower alkyl or phenyl; and

    physiologically acceptable salts thereof.

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