Patents by Inventor David H. Drewry

David H. Drewry has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5326760
    Abstract: Aminobutanoic acids of the following formula (I): ##STR1## where R.sup.1 -R.sup.5 are a variety of substituents, novel intermediates, a pharmaceutical composition for treating inflammatory diseases, demyelinating diseases, and tumor metastasis, methods for such treatment and processes for preparing compounds of formula (I).
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: July 5, 1994
    Assignee: Glaxo, Inc.
    Inventors: Andrew B. McElroy, Peter J. Brown, David H. Drewry, James M. Salovich, Frank J. Schoenen
  • Patent number: 5252560
    Abstract: Compounds are described of the formula ##STR1## wherein: R.sup.1 is C.sub.3-6 alkyl or C.sub.1-3 alkylthioC.sub.1-3 alkyl;R.sup.2 is an optionally substituted C.sub.1-6 alkyl or C.sub.1-6 alkoxy group, aryl, heteroaryl, arylC.sub.1-4 alkyl, heteroarylC.sub.1-4 alkyl or a side-chain of a natural .alpha.-amino acid;R.sup.3 is hydrogen, C.sub.1-6 alkyl, CHR.sup.4 COR.sup.5 (where R.sup.4 is a side-chain of a natural .alpha.-amino acid and R.sup.5 is hydroxyl, C.sub.1-6 alkoxy or NHR.sup.6 where R.sup.6 represents a hydrogen atom or a C.sub.1-6 alkyl group) or a group (CH.sub.2).sub.n X (where n is 1 to 6 and X is hydroxyl, C.sub.1-4 alkoxy, heteroaryl or a group NR.sup.7 R.sup.8 where R.sup.7 and R.sup.8 are each hydrogen or C.sub.1-6 alkyl or the group NR.sup.7 R.sup.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: October 12, 1993
    Assignee: Glaxo Inc.
    Inventors: Peter L. Myers, Andrew B. McElroy, Michael Gregson, Peter J. Brown, Howard G. Davies, David H. Drewry, Michael A. Foley