Patents Represented by Attorney, Agent or Law Firm Mark R. Daniel
  • Patent number: 5908936
    Abstract: A process for synthesizing a compound of formula I: is disclosed wherein R represents halo or C.sub.1-6 alkyl, unsubstituted or substituted with OP, wherein P represents a protecting group.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: June 1, 1999
    Assignee: Merck & Co., Inc.
    Inventors: Guy R. Humphrey, Ross A. Miller, David R. Lieberman
  • Patent number: 5906207
    Abstract: A method of chronically instrumenting an animal enabling one to simulate congestive heart failure. A method for assessing the effects of a test compound on cardiac function and systemic vascular dynamics.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: May 25, 1999
    Assignee: Merck & Co., Inc.
    Inventor: You-Tang Shen
  • Patent number: 5891889
    Abstract: The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: April 6, 1999
    Assignee: Merck & Co., Inc.
    Inventors: Neville J. Anthony, Robert P. Gomez, John S. Wai, Mark W. Embrey, Thorsten E. Fisher
  • Patent number: 5891661
    Abstract: At low temperature, the protease of human cytomegalovirus (HCMV) is rendered highly active as a dimer of identical units. The protease is useful as a screening tool for HCMV antivirals as well as a diagnostic tool for diseases resulting from HCMV infection.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: April 6, 1999
    Assignee: Merck & Co., Inc.
    Inventors: Paul L. Darke, Lawrence C. Kuo
  • Patent number: 5885995
    Abstract: The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: March 23, 1999
    Assignee: Merck & Co., Inc.
    Inventor: Christopher J. Dinsmore
  • Patent number: 5882601
    Abstract: An access port for a reaction or other fluid vessel which maintains the vessel under an inert gas atmosphere and maintains the integrity of the inert gas seal while performing filtered filling or draining operations is presented. The port uses a deflected septum sealing technique. The invention can be used for a number of laboratory and clinical operations on a variety of size and shape vessels. The combination of the appropriate vessel with this access port is very well suited for use in lab automation systems, such as automated solid phase chemical synthesis, biological screening, combinatorial chemistry and other areas where reaction chemistry is conducted.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: March 16, 1999
    Assignee: Merck & Co., Ltd.
    Inventors: Gary S. Kath, Lihu Yang, Gregory W. King
  • Patent number: 5883105
    Abstract: The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: March 16, 1999
    Assignee: Merck & Co., Inc.
    Inventor: Neville J. Anthony
  • Patent number: 5883119
    Abstract: The compounds of Formula I ##STR1## are useful as immunosuppressive agents.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: March 16, 1999
    Assignee: Merck & Co., Inc.
    Inventors: Robert K. Baker, Frank Kayser, Jianming Bao, William H. Parsons, Kathleen M. Rupprecht
  • Patent number: 5880140
    Abstract: The present invention is directed to compounds of the formula A which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras: ##STR1## The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: March 9, 1999
    Assignee: Merck & Co., Inc.
    Inventor: Neville J. Anthony
  • Patent number: 5879891
    Abstract: There is disclosed a procedure for DNA-mediated transformation of Saccharomyces cerevisiae by electroporation utilizing lithium acetate and dithiothreitol to weaken cell wall structure resulting in increased transformation efficiency.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: March 9, 1999
    Assignee: Merck & Co., Inc.
    Inventor: John R. Thompson
  • Patent number: 5877328
    Abstract: A process for the synthesis of an N-(di-substituted phosphoryl)-trans-4-hydroxy-L-proline of the formula I: ##STR1## is disclosed, wherein R.sup.1 and R.sup.2 independently represent C.sub.1-18 alkyl, phenyl or phenyl-substituted C.sub.1-18 alkyl, or R.sup.1 and R.sup.2 are taken in combination to represent C.sub.2-4 alkylidene or phenyl. Trans-4-hydroxy-L-proline is reacted with a di-(substituted) phosphite of the formula III: ##STR2## in the presence of sodium hypochlorite and sodium hydroxide to produce a compound of formula I.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: March 2, 1999
    Assignee: Merck & Co., Inc.
    Inventor: Karel M. J. Brands
  • Patent number: 5874594
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: February 23, 1999
    Assignee: Merck & Co., Inc.
    Inventors: Robert K. Baker, Frank Kayser, Jianming Bao, Andrew Kotliar, William H. Parsons, Kathleen M. Rupprecht
  • Patent number: 5874452
    Abstract: The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: February 23, 1999
    Assignee: Merck & Co., Inc.
    Inventor: Neville J. Anthony
  • Patent number: 5874403
    Abstract: Novel amino acid conjugates of cyclohexa-peptidyl amines having the formula ##STR1## and having antifungal and antiparasital properties are described. The compounds exhibit less acute toxicity than the free amines.
    Type: Grant
    Filed: October 15, 1992
    Date of Patent: February 23, 1999
    Assignee: Merck & Co., Inc.
    Inventor: Robert A. Zambias
  • Patent number: 5872250
    Abstract: A process for synthesizing a compound of the formula I: ##STR1## or a pharmaceutically acceptable salt or ester thereof, wherein each P independently represents H or a protecting group, and R.sup.1 and R.sup.2 independently represent H, C.sub.1-10 alkyl, aryl or heteroaryl, or substituted C.sub.1-10 alkyl, aryl or heteroaryl, comprising:reacting the compounds: ##STR2## or a pharmaceutically acceptable salt or ester thereof, and ##STR3## or a pharmaceutically acceptable salt or ester thereof, wherein X represents OP(O)(OR).sub.2, or OSO.sub.2 R, wherein R represents C.sub.1-6 alkyl, aryl or perfluoro C.sub.1-6 alkyl, in the presence of an amine selected from the group consisting of: diisopropylamine (DIPA), dicyclohexylamine (DCHA), 2,2,6,6-tetramethylpiperidine (TMP), 1,1,3,3-tetramethylguanidine (TMG), 1,8-diazabicyclo?4.3.0!undec-7-ene (DBU) and 1,5-diazabicyclo?4.3.0!non-5-ene to produce a compound of formula I.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: February 16, 1999
    Assignee: Merck & Co., Inc.
    Inventors: John M. Williams, Ronald B. Jobson
  • Patent number: 5872135
    Abstract: The present invention comprises analogs of the CAAX motif of the protein Ras that is modified by farnesylation in vivo. These CAAX analogs inhibit farnesyl-protein transferase. Furthermore, these CAAX analogues differ from those previously described as inhibitors of farnesyl-protein transferase in that they do not have a thiol moiety. The lack of the thiol offers unique advantages in terms of improved pharmacokinetic behavior in animals, prevention of thiol-dependent chemical reactions, such as rapid autoxidation and disulfide formation with endogenous thiols, and reduced systemic toxicity. Further contained in this invention are chemotherapeutic compositions containing these farnesyl transferase inhibitors and methods for their production.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: February 16, 1999
    Assignee: Merk & Co., Inc.
    Inventor: S. Jane deSolms
  • Patent number: 5872136
    Abstract: The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: February 16, 1999
    Assignee: Merck & Co., Inc.
    Inventors: Neville J. Anthony, Robert P. Gomez, Samuel L. Graham
  • Patent number: 5869682
    Abstract: The present invention is directed to compounds which inhibit farnesyl-protein transferase (FTase) and the farnesylation of the oncogene protein Ras. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for inhibiting farnesyl-protein transferase and the farnesylation of the oncogene protein Ras.
    Type: Grant
    Filed: March 27, 1997
    Date of Patent: February 9, 1999
    Assignee: Merck & Co., Inc.
    Inventor: S. Jane deSolms
  • Patent number: 5866679
    Abstract: Oligopeptides which comprise amino acid sequences that are recognized and proteolytically cleaved by free prostate specific antigen (PSA) are described. Also described are assays which comprise such oligopeptides useful for determining free PSA protease activity in vitro and in vivo. Therapeutic agents which comprise conjugates of such oligopeptides and known cytotoxic agents are also described.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: February 2, 1999
    Assignee: Merck & Co., Inc.
    Inventors: Deborah DeFeo-Jones, Victor M. Garsky, Dong-Mei Feng, Raymond E. Jones, Allen I. Oliff
  • Patent number: D405005
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: February 2, 1999
    Assignee: Merck & Co., Inc.
    Inventor: Arthur L. Lifshey