Patents by Inventor Noel J. Cusack

Noel J. Cusack 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).

  • Substituted 9-alkyladenines
    Patent number: 5981524
    Abstract: Optically active or racemic compounds represented by the formula ##STR1## where R.sub.1 is C.sub.1 to C.sub.4 straight chain or branched alkyl; R.sub.2 is selected from the group consisting of H, --OR.sub.1, --SR.sub.1, --NH(R.sub.1), --N(R.sub.4)(R.sub.5), aminocarbonyl, halogen, and --CN, where R.sub.4 and R.sub.5 are independently C.sub.1 to C.sub.6 straight chain or branched alkyl, or taken together form a 3- to 7-membered heterocycloalkyl substituent, such heteroatom selected from the group consisting of oxygen, nitrogen and sulfur, optionally including an additional heteroatom which is selected from the group consisting of nitrogen, oxygen, and sulfur; R.sub.3 is cyclopentyl or: ##STR2## where R' and R" are independently H, .dbd.O, --OH, or --NH.sub.2, with the proviso that R' and R" can be taken together form the following structure as R.sub.3 : ##STR3## where R'" is --OH or --NH.sub.2 ; and with the further proviso that when R.sub.3 is cyclopentyl or norbornyl, then R.sub.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: November 9, 1999
    Assignee: Discovery Therapeutics, Inc.
    Inventors: James V. Peck, Ronald J. Wysocki, Ibrahim M. Uwaydah, Noel J. Cusack
  • N-substituted 9-alkyladenines
    Patent number: 5670501
    Abstract: Optically active or racemic compounds represented by the formula ##STR1## where R.sub.1 is C.sub.1 to C.sub.4 straight chain or branched alkyl; R.sub.2 is selected from the group consisting of H, --OR.sub.1, --SR.sub.1, --NH(R.sub.1), --N(R.sub.4)(R.sub.5), aminocarbonyl, halogen, and --CN, where R.sub.4 and R.sub.5 are independently C.sub.1 to C.sub.6 straight chain or branched alkyl, or taken together form a 3- to 7-membered heterocycloalkyl substituent, such heteroatom selected from the group consisting of oxygen, nitrogen and sulfur, optionally including an additional heteroatom which is selected from the group consisting of nitrogen, oxygen, and sulfur; R.sub.3 is cyclopentyl or: ##STR2## where R' and R" are independently H, .dbd.O, --OH, or --NH.sub.2, with the proviso that R' and R" can be taken together form the following structure as R.sub.3 : ##STR3## where R'" is --OH or --NH.sub.2 ; and with the further proviso that when R.sub.3 is cyclopentyl or norbornyl, then R.sub.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: September 23, 1997
    Assignee: Discovery Therapeutics, Inc.
    Inventors: James V. Peck, Ronald J. Wysocki, Ibrahim M. Uwaydah, Noel J. Cusack