Patents by Inventor Malcolm Maccoss

Malcolm Maccoss 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: 5162325
    Abstract: Substituted heterocycles attached through a methylene bridge to novel substituted phenyl derivatives of the Formula I are useful as angiotensin II antagonists.
    Type: Grant
    Filed: May 7, 1991
    Date of Patent: November 10, 1992
    Assignee: Merck & Co., Inc.
    Inventors: Prasun K. Chakravarty, Malcolm MacCoss, Nathan Mantlo, Thomas F. Walsh
  • Patent number: 5157040
    Abstract: Substituted quinolines of the formula (I), are angiotensin II antagonists, ##STR1## and useful in the treatment of hypertension, ocular hypertension and certain CNS disorders.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: October 20, 1992
    Assignee: Merck & Co., Inc.
    Inventors: William J. Greenlee, David B. R. Johnston, Malcolm MacCoss
  • Patent number: 5137876
    Abstract: The compound having the formula: ##STR1## has antiviral activity, specifically in the prevention or treatment of infection by retroviruses, including HIV, and immunosuppressive activity, either as a compound, pharmaceutically acceptable salt, or a pharmaceutical composition ingredient, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of preventing or treating viral infections and modulating immune responses in vivo are also described.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: August 11, 1992
    Assignee: Merck & Co., Inc.
    Inventors: Malcolm MacCoss, Laura C. Meurer, Richard L. Tolman
  • Patent number: 5104862
    Abstract: New substituted azetidinones of the general formula (A), which have been found to be potent elastase inhibitors and thereby useful as anti-inflammatory and antidegenerative agents, are described.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: April 14, 1992
    Assignee: Merck & Co., Inc.
    Inventors: Philippe L. Durette, Malcolm Maccoss
  • Patent number: 5100880
    Abstract: New substituted azetidinones of the general formula (A), which have been found to be potent elastase inhibitors and thereby useful as anti-inflammatory and antidegenerative agents, are described.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: March 31, 1992
    Assignee: Merck & Co., Inc.
    Inventors: Philippe L. Durette, Malcolm Maccoss
  • Patent number: 5057517
    Abstract: There are disclosed certain 6-piperazinopurines and heteroaromatic derivatives thereof which have oral hypoglycemic acitivity and with such ability to lower blood sugar are useful in the treatment of type II diabetes and/or obesity with associated insulin resistance. Processes for the preparation of such compounds and compositions containing such compounds as the active ingredient thereof are also disclosed.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: October 15, 1991
    Assignee: Merck & Co., Inc.
    Inventors: David B. R. Johnston, Malcolm MacCoss, Stephen Marburg, Laura C. Meurer, Richard L. Tolman
  • Patent number: 4980350
    Abstract: Novel hypoglycemic agents having the formula (I) are disclosed.
    Type: Grant
    Filed: July 31, 1989
    Date of Patent: December 25, 1990
    Assignee: Merck & Co., Inc.
    Inventors: Malcolm MacCoss, Richard L. Tolman, Arthur F. Wagner
  • Patent number: 4966895
    Abstract: The present invention relates to a method for treating mammals having acquired immuno-deficiency syndrome (AIDS) or AIDS-related complex or who are infected with other retroviruses, which comprises the administration of a therapeutically effective amount of a cyclic monophosphate derivative of a purine or pyrimidine acyclonucleoside. Process for the preparation of such compounds and compositions containing such compounds as the active ingredient thereof are also disclosed.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: October 30, 1990
    Assignee: Merck & Co. Inc.
    Inventors: Richard L. Tolman, Malcolm MacCoss
  • Patent number: 4897479
    Abstract: Compounds of the formula ##STR1## and the pharmaceutically acceptable salts thereof are disclosed. In these compounds, R.sup.1 is halogen, --SR.sup.4 wherein R.sup.4 is H or alkyl of 1 to 4 carbon atoms, --OCH.sub.3, --OSO.sub.2 Ar wherein Ar is phenyl or alkyl substituted phenyl wherein the alkyl group has 1 to 6 carbon atoms, --NR.sup.4 R.sup.5 wherein R.sup.4 is as defined above and R.sup.5 is H, alkyl of 1 to 4 carbon atoms, amino, alkanoyl of 1 to 8 carbon atoms, benzoyl, methoxy or hydroxy or R.sup.1 is --N(CH.sub.3).sub.3.sup.+ X.sup.-whereinX is halogen or --OSO.sub.2 Ar wherein Ar is phenyl or alkyl substituted phenyl wherein the alkyl group has 1 to 6 carbon atoms;R.sup.2 is H, alkanoyl of 1 to 8 carbon atoms or benzoyl;R.sup.3 is A or B whereinA is ##STR2## and B is ##STR3## wherein R.sup.6 and R.sup.7 are independently selected from H and ##STR4## wherein R.sup.8 and R.sup.9 are independently selected from pharmaceutically acceptable cations and H, or R.sup.6 and R.sup.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: January 30, 1990
    Assignee: Merck & Co., Inc.
    Inventors: Richard L. Tolman, Wallace Ashton, Malcolm Maccoss
  • Patent number: 4801710
    Abstract: A process for preparing 9-substituted guanine-containing acyclonucleosides comprising selective alkylation at the 9-position of the purine by utilizing a blocking group at the 6-position.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: January 31, 1989
    Assignee: Merck & Co., Inc.
    Inventors: Malcolm MacCoss, Richard L. Tolman, Arthur F. Wagner, John Hannah
  • Patent number: 4670424
    Abstract: A compound of the formula R--CH.sub.2 --O--W and its pharmaceutically acceptable salts wherein R is a purine, a substituted purine, a pyrimidine or a substituted pyrimidine, wherein the substituents on the purine or pyrimidine are selected from amino, hydroxyl, halogen, thiol or alkylthiol wherein the alkyl moiety of the alkylthiol has 1 to 6 carbon atoms; and W is ##STR1## The compounds have antiviral activity.
    Type: Grant
    Filed: September 19, 1983
    Date of Patent: June 2, 1987
    Assignee: Merck & Co., Inc.
    Inventors: Malcolm MacCoss, Richard Tolman
  • Patent number: 4579849
    Abstract: Disclosed are compounds of the formula: ##STR1## and the pharmaceutically acceptable salts thereof wherein R.sup.1 and R.sup.2 are independently alkyl, haloalkyl, alkenyl, haloalkenyl, alkynyl or haloalkynyl, each having 1 to 19 carbon atoms, or R.sup.2 is hydrogen; R.sup.3 is hydrogen, alkyl having 1 to 6 carbon atoms or hydroxyalkyl having 1 to 6 carbon atoms; R.sup.4 is hydrogen, halogen, amino or alkyl having 1 to 4 carbon atoms; R.sup.5, R.sup.6 and R.sup.7 are independently selected from hydrogen, hydroxy, alkyl having 1 to 6 carbon atoms, acyloxy having 1 to 8 carbon atoms, alkoxy having 1 to 6 carbon atoms, hydroxyalkyl having 1 to 6 carbon atoms, acyloxyalkyl having 1 to 12 carbon atoms, amino, alkylamino of 1 to 6 carbon atoms and --PO.sub.3.sup.=, or two of R.sup.5, R.sup.6 and R.sup.7 taken together form a group --OPO.sub.2 O.sup.- --, --CH.sub.2 OPO.sub.2 O.sup.- --, --CH.sub.2 OPO.sub.2 OPO.sub.2 O.sup.= --, or --OPO.sub.2 OPO.sub.2 O.sup.= --; A is O, S or CH.sub.
    Type: Grant
    Filed: April 6, 1984
    Date of Patent: April 1, 1986
    Assignee: Merck & Co., Inc.
    Inventors: Malcolm MacCoss, Richard L. Tolman, Robert A. Strelitz
  • Patent number: 4471113
    Abstract: The invention relates to the production of a single diastereomeric form of a phospholipid araC conjugate as a prodrug.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: September 11, 1984
    Assignee: The United States of America as represented by the Department of Energy
    Inventor: Malcolm MacCoss