Patents Examined by Paul M. Coughland, Jr.
  • Derivatives of 2-substituted-hydroxyanilino-hexahydro-2H-benzo[.alpha.]quinolizines
    Patent number: 3995041
    Abstract: 2-Substituted-hydroxyanilino-hexahydro-2H-benzo[.alpha.]quinolizines of the structural formula, ##SPC1##In which R.sup.1 is a hydrogen atom or an alkanoyl group of 2 to 4 carbon atoms and each of substituents R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is a hydrogen atom, a hydroxyl, or a methyl group, such that at least one of the latter substituents is a hydroxyl group, exhibit coronary vasodilating activity.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: November 30, 1976
    Assignee: Miles Laboratories, Inc.
    Inventors: Herbert John Havera, Richard Don Johnson, Horacio Vidrio