Patents by Inventor Ronald E. Esser

Ronald E. Esser 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: 6436947
    Abstract: This invention relates to Trans cyclopentanyl purine analogs of the formula (1) wherein the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent, Y3, Y5 Y7, Y9 are each nitrogen and Y8 is a CH group, R is a hydrogen, a C1-C7 alkyl acyl or aryl acyl, Q is NH2, halogen or hydrogen, Z is hydrogen, halogen, or NH2; or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: August 20, 2002
    Assignee: Aventis Pharmaceuticals Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5929079
    Abstract: This invention relates to Trans cyclopentanyl purine analogs of the formula (1) ##STR1## wherein the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.5, Y.sub.7, Y.sub.8 and Y.sub.9 are each nitrogen,R is a hydrogen, a C.sub.1 -C.sub.7 alkyl acyl or aryl acyl,Q is NH.sub.2, halogen or hydrogen,Z is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: July 27, 1999
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5916892
    Abstract: This invention relates to Trans cyclopentanyl purine analogs of the formula (1) ##STR1## wherein the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.5 and Y.sub.9 are each nitrogen and Y.sub.7 and Y.sub.8 are a CH group,R is a hydrogen, a C.sub.1 -C.sub.7 alkyl acyl or aryl acyl,Q is NH.sub.2, halogen or hydrogen,Z is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: June 29, 1999
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5905085
    Abstract: This invention relates to novel Trans cyclopentanyl purine analogs of the formula (1) ##STR1## wherein the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent,Y.sub.3 and Y.sub.8 are CH, Y.sub.5, Y.sub.7 and Y.sub.9 are each independently nitrogen,R is a hydrogen, a C.sub.1 -C.sub.7 alkyl acyl or aryl acyl,Q is NH.sub.2, halogen or hydrogen,Z is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: November 20, 1997
    Date of Patent: May 18, 1999
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5817661
    Abstract: This invention relates to Trans cyclopentanyl purine analogs of the formula (1) ##STR1## wherein the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.5 Y.sub.7, Y.sub.9 are each nitrogen and Y.sub.8 is a CH group,R is a hydrogen, a C.sub.1 -C.sub.7 alkyl acyl or aryl acyl,Q is NH.sub.2, halogen or hydrogen,Z is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 6, 1998
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5817672
    Abstract: This invention relates to novel Trans cyclopentanyl purine analogs of the formula (1) ##STR1## wherein the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent, Y.sub.3 and Y.sub.8 are CH, Y.sub.5, Y.sub.7 and Y.sub.9 are each independently nitrogen,R is a hydrogen, a C.sub.1 -C.sub.7 alkyl acyl or aryl acyl,Q is NH.sub.2, halogen or hydrogen,Z is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 6, 1998
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5817660
    Abstract: This invention relates to Trans cyclopentanyl purine analogs of the formula (1) ##STR1## wherein the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.5, Y.sub.7, Y.sub.8 and Y.sub.9 are each nitrogen,R is a hydrogen, a C.sub.1 -C.sub.7 alkyl acyl or aryl acyl,Q is NH.sub.2, halogen or hydrogen,Z is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 6, 1998
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5723466
    Abstract: This invention relates to Trans cyclopentanyl purine analogs of the formula (1) ##STR1## wherein the substituent in the 3-position on the cyclopentanyl ring is in the Trans configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.5 and Y.sub.9 are each nitrogen and Y.sub.7 and Y.sub.8 are a CH group,R is a C.sub.1 -C.sub.7 alkyl acyl or aryl acyl,Q is NH.sub.2, halogen or hydrogen,Z is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 3, 1998
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5631258
    Abstract: This invention relates to methods of effecting immunosuppression and inhibiting tumor necrosis factor .alpha. in a patient in need thereof comprising administering to said patient an effective immunosuppressive amount of a compound of the formula ##STR1## wherein the hydroxy substituent on the cyclopentanyl ring is in the CIS configuration relative to the bicyclic substituent,Y.sub.3 is N, Y.sub.7, Y.sub.8 and Y.sub.9 are each independently nitrogen or a CH group,Q is NH.sub.2, halogen or hydrogen, andZ is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof. Also presented are pharmaceutical compositions comprising compounds of the same formula.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: May 20, 1997
    Assignee: Merrell Pharmaceuticals Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser
  • Patent number: 5624930
    Abstract: This invention relates to a method of effecting immunosuppression in a patient in need thereof comprising administering an effective amount of a compound of the formula (1) ##STR1## wherein the hydroxy substituent on the cyclopentenyl ring is in the CIS configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.7, Y.sub.8 and Y.sub.9 are each independently nitrogen or a CH group,Q is NH.sub.2, halogen or hydrogen, andZ is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: April 29, 1997
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5605903
    Abstract: This invention relates to a method of effecting immunosuppression in a patient in need thereof comprising administering an effective amount of a compound of the formula (1) ##STR1## wherein the hydroxy substituent on the cyclopentenyl ring is inthe CIS configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.7, Y.sub.8 and Y.sub.9 are each independently nitrogen or a CH group,Q is NH.sub.2, halogen or hydrogen, andZ is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: March 22, 1995
    Date of Patent: February 25, 1997
    Assignee: Hoechst Marion Roussel, Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5514688
    Abstract: This invention relates to carbocyclic adenosine compounds of the formula (1) ##STR1## wherein the hydroxy substituent on the cyclopentanyl ring is in the CIS configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.7, Y.sub.8 and Y.sub.9 are each independently nitrogen or a CH group,Q is NH.sub.2, halogen or hydrogen, andZ is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: May 7, 1996
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser
  • Patent number: 5470857
    Abstract: This invention relates to a method of effecting immunosuppression in a patient in need thereof comprising administering an effective amount of a compound of the formula (1) ##STR1## wherein the hydroxy substituent on the cyclopentenyl ring is in the CIS configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.7, Y.sub.8 and Y.sub.9 are each independently nitrogen or a CH group,Q is NH.sub.2, halogen or hydrogen, andZ is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: November 28, 1995
    Assignee: Marion Merrell Dow Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5244896
    Abstract: This invention relates to novel carbocyclic adenosine compounds of the formula (1) ##STR1## wherein the hydroxy substituent on the cyclopentanyl ring is in the CIS configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.7, Y.sub.8 and Y.sub.9 are each independently nitrogen or a CH group,Q is NH.sub.2, halogen or hydrogen, andZ is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof, and to their use as immunosuppressants.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: September 14, 1993
    Assignee: Marion Merrell Dow Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole