Patents Represented by Attorney Edwart T. Lentz

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  • Leukotriene antagonists
    Patent number: 5034537
    Abstract: This invention relates to (R)-.alpha.-methyl-4-halobenzenemethanamine salts of epimers of acids of the formula ##STR1## and the use of these salts to separate these epimers. These acids are leukotriene antagonists.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: July 23, 1991
    Assignee: SmithKline Beecham Corporation
    Inventor: James S. Frazee