Patents by Inventor Gary T. Borrett

Gary T. Borrett 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).

  • Process for preparing an enantiomer of a carbazole derivative
    Patent number: 5618948
    Abstract: A (+) or (-) enantiomer of a compound of formula (I) wherein R.sup.4 is methyl or ethyl, or a salt, solvate or hydrate thereof, processes for preparing said compounds and pharmaceutical compositions containing them. Compounds of formula (+) are 5-HT.sub.1 -like agonists.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: April 8, 1997
    Assignee: SmithKline Beecham p.l.c.
    Inventors: Gary T. Borrett, John Kitteringham, Roderick A. Porter, Mark R. Shipton, Mythily Vimal, Rodney C. Young
  • Process of preparing enantiomers of carbazole derivatives
    Patent number: 5618947
    Abstract: A (+) or (-) enantiomer of a compound of formula (I) wherein R.sup.4 is methyl or ethyl, or a salt, solvate or hydrate thereof, processes for preparing said compounds and pharmaceutical compositions containing them. Compounds of formula (+) are 5-HT.sub.1 -like agonists.
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: April 8, 1997
    Assignee: SmithKline Beecham, p.l.c.
    Inventors: Gary T. Borrett, John Kitteringham, Roderick A. Porter, Mark R. Shipton, Mythily Vimal, Rodney C. Young
  • Enantiomers of carbazole derivatives as 5-HT.sub.1 -like agonists
    Patent number: 5616603
    Abstract: A (+)or (-) enantiomer of a compound of formula (I) wherein R.sup.4 is methyl or ethyl, or a salt, solvate or hydrate thereof, processes for preparing said compounds and pharmaceutical compositions containing them. Compounds of formula (+) are 5-HT.sub.1 -like agonists.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: April 1, 1997
    Assignee: SmithKline Beecham plc
    Inventors: Gary T. Borrett, John Kitteringham, Roderick A. Porter, Mark R. Shipton, Mythily Vimal, Rodney C. Young
  • Chemical process
    Patent number: 4861893
    Abstract: A process is disclosed for the preparation of a compound of formula (I): ##STR1## where Ar is aryl or substituted aryl and R.sup.3 and R.sup.4 are the same or different and each is alkyl, which process comprises hydrognating a compound of formula (II): ##STR2## wherein Ar, R.sup.3 and R.sup.4 are as defined with respect to formula (I) and Hal is a halogen atom.Compounds of formula (I) are useful as chemical intermediates.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: August 29, 1989
    Assignee: Beecham Group PLC.
    Inventor: Gary T. Borrett