Patents by Inventor Derek Clissold

Derek Clissold 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 the preparation of prostaglandins and analogues thereof
    Patent number: 7498458
    Abstract: Disclosed are processes for the synthesis and purification of prostaglandins and analogues thereof, especially analogues of PGF2?.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: March 3, 2009
    Assignee: Resolution Chemicals Limited
    Inventors: Alan Kenneth Greenwood, Derek McHattie, David George Thompson, Derek Clissold
  • Process for the preparation of prostaglandins and analogues thereof
    Patent number: 7268239
    Abstract: Disclosed are processes for the synthesis and purification of prostaglandins and analogues thereof, especially analogues of PGF2?.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: September 11, 2007
    Assignee: Resolution Chemicals Limited
    Inventors: Alan Kenneth Greenwood, Derek McHattie, David George Thompson, Derek Clissold
  • Protected and unprotected triols for prostaglandin synthesis
    Publication number: 20060106236
    Abstract: A process for the preparation of prostaglandin compounds having the formula (I): wherein A is selected from the group consisting of C1-C6 alkyl groups; C7-C16 aralkyl groups wherein an aryl portion thereof is unsubstituted or substituted with one to three substituents selected from the group consisting of C1-C6 alkyl groups, halo and CF3; and (CH2)nOR? wherein n is an integer from 1 to 3 and R? represents a C6-C10 aryl group which is unsubstituted or substituted with one to three substituents selected from the group consisting of C1-C6 alkyl groups, halo and CF3; B is selected from OR? and NHR? wherein R? is C1-C6 alkyl groups; and represents a double bond or a single bond, is disclosed. Novel intermediates are also disclosed.
    Type: Application
    Filed: January 9, 2006
    Publication date: May 18, 2006
    Inventors: Derek Clissold, Stuart Craig, Rajendrakumar Gadikota, Min He, Jurjus Jurayj, Shahrokh Kazerani, Erwin Rannala, Pradeep Sharma
  • Protected diols for prostaglandin synthesis
    Publication number: 20060106235
    Abstract: A process for the preparation of prostaglandin compounds having the formula (I): wherein A is selected from the group consisting of C1-C6 alkyl groups; C7-C16 aralkyl groups wherein an aryl portion thereof is unsubstituted or substituted with one to three substituents selected from the group consisting of C1-C6 alkyl groups, halo and CF3; and (CH2)nOR? wherein n is an integer from 1 to 3 and R? represents a C6-C10 aryl group which is unsubstituted or substituted with one to three substituents selected from the group consisting of C1-C6 alkyl groups, halo and CF3; B is selected from OR? and NHR? wherein R? is C1-C6 alkyl groups; and represents a double bond or a single bond, is disclosed. Novel intermediates are also disclosed.
    Type: Application
    Filed: January 9, 2006
    Publication date: May 18, 2006
    Inventors: Derek Clissold, Stuart Craig, Rajendrakumar Gadikota, Min He, Jurjus Jurayj, Shahrokh Kazerani, Erwin Rannala, Pradeep Sharma
  • Process for the preparation of prostaglandins and analogues thereof
    Publication number: 20050272877
    Abstract: Disclosed are processes for the synthesis and purification of prostaglandins and analogues thereof, especially analogues of PGF2?.
    Type: Application
    Filed: July 27, 2005
    Publication date: December 8, 2005
    Applicant: Resolution Chemicals Limited
    Inventors: Alan Greenwood, Derek McHattie, David Thompson, Derek Clissold
  • Process for the preparation of prostaglandins and analogues thereof
    Publication number: 20050261374
    Abstract: Disclosed are processes for the synthesis and purification of prostaglandins and analogues thereof, especially analogues of PGF2?.
    Type: Application
    Filed: July 27, 2005
    Publication date: November 24, 2005
    Inventors: Alan Greenwood, Derek McHattie, David Thompson, Derek Clissold
  • Prostaglandin synthesis
    Publication number: 20050154220
    Abstract: A process for the preparation of prostaglandin compounds having the formula (I): wherein A is selected from the group consisting of C1-C6 alkyl groups; C7-C16 aralkyl groups wherein an aryl portion thereof is unsubstituted or substituted with one to three substituents selected from the group consisting of C1-C6 alkyl groups, halo and CF3; and (CH2)nOR? wherein n is an integer from 1 to 3 and R? represents a C6-C10 aryl group which is unsubstituted or substituted with one to three substituents selected from the group consisting of C1-C6 alkyl groups, halo and CF3; B is selected from OR? and NHR? wherein R? is C1-C6 alkyl groups; and represents a double bond or a single bond, is disclosed. Novel intermediates are also disclosed.
    Type: Application
    Filed: January 5, 2004
    Publication date: July 14, 2005
    Inventors: Derek Clissold, Stuart Craig, Rajendrakumar Gadikota, Min He, Jurjus Jurayj, Shahrokh Kazerani, Erwin Rannala, Pradeep Sharma
  • Process for the preparationof prostaglandins and analogues thereof
    Publication number: 20040249172
    Abstract: Disclosed are processes for the synthesis and purification of prostaglandins and analogues thereof, especially analogues of PGF2&agr;.
    Type: Application
    Filed: June 8, 2004
    Publication date: December 9, 2004
    Inventors: Alan Kenneth Greenwood, Derek McHattie, David George Thompson, Derek Clissold