Patents Assigned to REDX Pharma Limited
  • Patent number: 9102656
    Abstract: This invention relates to the discovery of novel rosuvastatin analogs. More specifically, the invention relates to novel rosuvastatin analogs which have utility in treating conditions treatable by the inhibition of HMG-CoA reductase.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: August 11, 2015
    Assignee: RedX Pharma Limited
    Inventors: Derek Lindsay, Peter Jackson
  • Patent number: 9024025
    Abstract: Provided are a compound of formula (5) and a process for its preparation wherein: R1 represents an alkyl group; R2 represents an aryl group; R3 represents a protecting group or an alkyl group; R4 represents a protecting group or a SO2R5 group where R5 is an alkyl group; R6 represents (PR7R8)+X? or P(?O)R7R8 in which X is an anion and R7 and R8 each independently is an alkyl, aryl, alkoxy, or aryloxy group; P1 represents hydrogen or a protecting group; and W represents ?O or OP2, in which P2 represents hydrogen or a protecting group.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: May 5, 2015
    Assignee: Redx Pharma Limited
    Inventors: David J. Moody, Jonathan W. Wiffen
  • Patent number: 9006282
    Abstract: This invention relates to the discovery of novel rosuvastatin and atorvastatin analogues.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: April 14, 2015
    Assignee: Redx Pharma Limited
    Inventors: Derek Lindsay, Peter Jackson, Stephen Hindley, Inder Bhamra
  • Patent number: 8946224
    Abstract: The present invention relates to derivatives of known active pharmaceutical compounds. These derivatives are differentiated from the parent active compound by virtue of being redox derivatives of the active compound. This means that one or more of the functional groups in the active compound has been converted to another group in one or more reactions which may be considered to represent a change of oxidation state. We refer to these compounds generally as redox derivatives. The derivatives of the invention may be related to the original parent active pharmaceutical compound by only a single step transformation, or may be related via several synthetic steps including one or more changes of oxidation state.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: February 3, 2015
    Assignee: Redx Pharma Limited
    Inventors: Mark Craighead, Ronald Palin, Neil Murray, Derek Lindsay
  • Patent number: 8877945
    Abstract: The present invention provides redox drug derivatives. In particular, 9-fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 1-ethyl-6-fluoro-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid, (3R,4R,5S)-4-(acetylamino)-5-amino-3-(1-ethylpropoxy)-1-cyclohexene-1-carboxylic acid ethyl ester, (3S)-3-(aminomethyl)-5-methylhexanoic acid, (3S)-1-[2-(2,3-dihydro-5-benzofuranyl)ethyl]-?-?-diphenyl-3-pyrrolidineacetamide, (1S,2S,3S,4R)-3-[(1S)-1-acetamido-2-ethyl-butyl]-4-(diaminomethylideneamino)-2-hydroxy-cyclopentane-1-carboxylic acid and (2R,3R,4S)-4-[(diaminomethylidene)amino]-3-acetamido-2-[(1R,2R)-1,2,3-trihydroxypropyl]-3,4-dihydro-2H-pyran-6-carboxylic acid redox derivatives.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: November 4, 2014
    Assignee: Redx Pharma Limited
    Inventors: Derek Lindsay, Peter Jackson
  • Publication number: 20140316135
    Abstract: Provided are a compound of formula (5) and a process for its preparation wherein: R1 represents an alkyl group; R2 represents an aryl group; R3 represents a protecting group or an alkyl group; R4 represents a protecting group or a SO2R5 group where R5 is an alkyl group; R6 represents (PR7R8)+X? or P(?O)R7R8 in which X is an anion and R7 and R8 each independently is an alkyl, aryl, alkoxy, or aryloxy group; P1 represents hydrogen or a protecting group; and W represents ?O or OP2, in which P2 represents hydrogen or a protecting group.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 23, 2014
    Applicant: Redx Pharma Limited
    Inventors: David J. Moody, Jonathan W. Wiffen
  • Patent number: 8853429
    Abstract: There is provides a process for the preparation of a compound of formula (7): wherein R is an optionally substituted hydrocarbyl group or an optionally substituted heterocyclic group; provides that R is not a compound of Formula (a): wherein Ra represents an alkyl group, such as a C1-16 alkyl group, and preferably an isopropyl group; Rb represents an aryl group, preferably a 4-fluorophenyl group; Rc represents hydrogen, a protecting group or an alkyl group, such as a C1-16 alkyl group, and preferably a methyl group; and Rd represents hydrogen, a protecting group or a SO2Re group where Re is an alkyl group, such as a C1-16 alkyl group, and preferably a methyl group.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: October 7, 2014
    Assignee: Redx Pharma Limited
    Inventors: David John Moody, Jonathan William Wiffen
  • Patent number: 8703945
    Abstract: There is provided a process for the preparation of a compound of formula (7) wherein R1 represents an alkyl group; R2 represents an aryl group; R3 represents hydrogen, a protecting group or an alkyl group; and R4 represents hydrogen, a protecting group or a SO2R5 group where R5 is an alkyl group, which comprises a) hydroxylating a compound of formula (1) wherein Y represents a halo group; P1 represents hydrogen or a protecting group, and W represents ?O or —OP2, in which P2 represents hydrogen or a protecting group, to give a compound of formula (2), b) oxidixing the compound of formula (2) to give a compound of formula (3), c) coupling the compound of formula (3) with a compound of formula (4), wherein R3 represents a protecting group or an alkyl group; R4 represents a protecting group or a SO2R5 group where R5 is an alkyl group; and R6 represents (PR7R8)+X? or P(?O)R7R8 in which X is an anion and R7 and R8 each independently is an alkyl, aryl.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: April 22, 2014
    Assignee: Redx Pharma Limited
    Inventors: David J. Moody, Jonathan W. Wiffen
  • Publication number: 20140018381
    Abstract: This invention relates to the discovery of novel rosuvastatin analogues. More specifically, the invention relates to novel rosuvastatin analogues which have utility in treating conditions treatable by the inhibition of HMG-CoA reductase.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 16, 2014
    Applicant: RedX Pharma Limited
    Inventors: Derek Lindsay, Peter Jackson
  • Patent number: 8614335
    Abstract: There is provided a process for the preparation of a compound of formula (7) or salts thereof: wherein R1 represents a hydrogen or a hydrocarbyl group, R2 represents a hydrogen or substituent group, R3 represents a hydrogen or a hydrocarbyl group, and X represents a hydrogen or substituent group which comprises a) cyanating a compound of formula (1): wherein Y represents a halo group, preferably CI or Br; P1 represents hydrogen or a protecting group, and W represents ?O or —OP2, in which P2 represents hydrogen or a protecting group, to give a compound of formula (2): b) reducing the compound of formula (2) to give a compound of formula (3): coupling the compound of formula (3) with a compound of formula (4): to give a compound of formula (5): when W represents —OP2, deprotecting and then oxidizing the compound of formula (5) to give a compound of formula (6): and e) subjecting the compound of formula (5) when W represents ?O, or compound of formula (6) to ring-opening, and removal of any remaining protecting
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: December 24, 2013
    Assignee: Redx Pharma Limited
    Inventors: David John Moody, Jonathan William Wiffen
  • Patent number: 8519164
    Abstract: There is provides a process for the preparation of a compound of formula (7): wherein R is an optionally substituted hydrocarbyl group or an optionally substituted heterocyclic group; provides that R is not a compound of Formula (a): wherein Ra represents an alkyl group, such as a C1-16 alkyl group, and preferably an isopropyl group; Rb represents an aryl group, preferably a 4-fluorophenyl group; Rc represents hydrogen, a protecting group or an alkyl group, such as a C1-16 alkyl group, and preferably a methyl group; and Rd represents hydrogen, a protecting group or a SO2Re group where Re is an alkyl group, such as a C1-16 alkyl group, and preferably a methyl group.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: August 27, 2013
    Assignee: Redx Pharma Limited
    Inventors: David John Moody, Jonathan William Wiffen
  • Patent number: 8278467
    Abstract: There is provides a process for the preparation of a compound of formula (7): wherein R is an optionally substituted hydrocarbyl group or an optionally substituted heterocyclic group; provides that R is not a compound of Formula (a): wherein Ra represents an alkyl group, such as a C1-16 alkyl group, and preferably an isopropyl group; Rb represents an aryl group, preferably a 4-fluorophenyl group; Rc represents hydrogen, a protecting group or an alkyl group, such as a C1-16 alkyl group, and preferably a methyl group; and Rd represents hydrogen, a protecting group or a SO2Re group where Re is an alkyl group, such as a C1-16 alkyl group, and preferably a methyl group.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: October 2, 2012
    Assignee: REDX Pharma Limited
    Inventors: David John Moody, Jonathan William Wiffen