Patents Represented by Attorney D. T. Szura

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  • Amino substituted tetrahydrobenzindoles
    Patent number: 4501900
    Abstract: Aminosubstituted tetrahydrobenzindoles having antihypertensive activity are disclosed.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: February 26, 1985
    Assignee: Merck & Co., Inc.
    Inventors: John J. Baldwin, James H. Jones, George F. Lundell
  • Amino acid esters
    Patent number: 3983138
    Abstract: Derivatives of .alpha.-methyl-3,4-dihydroxyphenylalanine which are useful in compositions as anti-hypertensive agents.
    Type: Grant
    Filed: June 25, 1974
    Date of Patent: September 28, 1976
    Assignee: Merck & Co., Inc.
    Inventor: Walfred S. Saari
  • Novel methods and compounds employed therein
    Patent number: 3962338
    Abstract: Preparation of an optically active alkamine in the sinister configuration, or a derivative of said alkamine, which is reacted with an 3-X-4-chloro(or RO-- where R is hydrogen or an alkali metal)-1,2,5-thiadiazole to prepare S-3-X-4-(3-substituted amino-2-hydroxypropoxy)-1,2,5-thiadiazole beta adrenergic blocking agents. Novel 3-morpholino-4-chloro(or RO--)-1,2,5-thiadiazoles and their preparation also are described.
    Type: Grant
    Filed: November 19, 1973
    Date of Patent: June 8, 1976
    Assignee: Merck & Co., Inc.
    Inventors: Leonard M. Weinstock, Roger J. Tull, Dennis M. Mulvey