Patents Assigned to Sterix Limited
  • Patent number: 8846737
    Abstract: There is provided a compound of formula I wherein Z is selected from N and CR22, wherein R22 is H or a bond with D; wherein D is selected from a bond, C?O, and linear or branched hydrocarbon groups having a carbon chain of from 1 to 6 carbon atoms, wherein the carbon chain optionally contains an oxy group (?O), an ether (—O—) or thioether (—S—) link, wherein R1 is selected from: triazolyl, imidazolyl, pyrimidinyl radical wherein each of R2 to R6 is independently selected from —H, NO2, halo, —CN, —N[(C?O)0-1R12][(C?O)0-1R13] and —(CH2)0-1R14, or two adjacent groups of R2 to R6, together with the carbon atoms to which they are attached, form a ring, wherein at least one of R2 to R6 is —CN, wherein (i) at least one of R2 to R6 is —(CH2)0-1R14, or (ii) at least one of R2 to R6 is —N[(C?O)0-1R12][(C?O)0-1R13], or (iii) at least two adjacent groups of R2 to R6 together with the carbon atoms to which they are attached, form a ring, or (iv) at least one of R2 to R6 is —(CH2)0-1—O—R?14, wherein R12 and R13
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: September 30, 2014
    Assignee: Sterix Limited
    Inventors: Lok Wai Lawrence Woo, Christian Bubert, Paul Michael Wood, Aurélien Putey, Atul Purohit, Barry Victor Lloyd Potter
  • Patent number: 8492570
    Abstract: The invention relates to the use of 2-substituted estra-1,3,5(10)-triene-3-yl sulfamates of general formula I, in addition to their pharmaceutically acceptable salts for producing a medicament. Said compounds have an anti-tumour action.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: July 23, 2013
    Assignee: Sterix Limited
    Inventors: Alexander Hillisch, Olaf Peters, Christian Gege, Wilko Regenhardt, Dirk Kosemund, Gerhard Siemeister, Eberhard Unger, Ulrich Bothe
  • Patent number: 8470860
    Abstract: There is provided a compound of Formula I wherein X, Y and Z are each independently of each other an optional linker group; R1 is a ring system; R2 is selected from hydrocarbyl groups, oxyhydrocarbyl groups, cyano (—CN), nitro (—NO2) and halogens; R3 and R4 are independently selected from H and hydrocarbyl, ring A and B are independently optionally further substituted.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: June 25, 2013
    Assignee: Sterix Limited
    Inventors: Lok Wai Lawrence Woo, Toby Jackson, Christian Bubert, Atul Purohit, Michael John Reed, Barry Victor Lloyd Potter
  • Patent number: 8394825
    Abstract: The present invention involves tetrahydroisoquinoline compounds and their use in the inhibition and/or prevention of tumor growth.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: March 12, 2013
    Assignee: Sterix Limited
    Inventors: Matthew Leese, Fabrice Jourdan, Meriel Kimberley, Atul Purohit, Barry Victor Lloyd Potter, Gillian Reed
  • Patent number: 8207152
    Abstract: There is provided use of a cyclic compound or a pharmaceutically active salt thereof in the manufacture of a medicament to prevent and/or inhibit and/or arrest cell cycling, wherein the cyclic compound comprises at least one ring, wherein Group I and Group II, independently of each other, are attached to a ring of the cyclic compound; wherein Group I is a hydrocarbyl or an oxyhydrocarbyl group; and wherein Group II is a group of the formula X is P or S; when X is P, Y is ?O or S, Z is —OH and R is hydrocarbyl or H; when X is S, Y is ?O, Z is ?O, and R is hydrocarbyl or N(R1)(R2), wherein each of R1 and R2 is independently selected from H or a hydrocarbyl group.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: June 26, 2012
    Assignee: Sterix Limited
    Inventors: Michael John Reed, Barry Victor Lloyd Potter
  • Patent number: 8148415
    Abstract: The present invention relates to steroid sulphatase and/or aromatase inhibitors of Formula III or Formula IV, wherein A is selected from H, OH, halogen and hydrocarbyl; D, E and F are each independently of each other an optional linker group; P, Q and R are independently of each other a ring system, wherein R4 and R5 are independently selected from H, alkyl, cycloalkyl, alkenyl, acyl and aryl, or combinations thereof, or together represent alkylene, wherein the or each alkyl or cycloalkyl or alkenyl or optionally contain one or more hetero atoms or groups, and which can be used in medicine.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: April 3, 2012
    Assignee: Sterix Limited
    Inventors: Barry Victor Lloyd Potter, Michael John Reed, Lok Wai Lawrence Woo, Atul Purohit, Christian Burbert, Paul Michael Wood, Oliver Brook Sutcliffe
  • Patent number: 8124614
    Abstract: There is provided a compound having Formula (I) wherein G is H or a substituent, and wherein R1 is any one of a sulphamate group, a phosphonate group, a thiophosphonate group, a sulphonate group or a sulphonamide group, capable of inhibiting steroid sulphatase.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: February 28, 2012
    Assignee: Sterix Limited
    Inventors: Barry Victor Lloyd Potter, Michael John Reed, Lok Wai Lawrence Woo
  • Patent number: 8119627
    Abstract: There is provided a compound having Formula (I) wherein each of rings A and B is selected from five or six membered carbon rings optionally containing one or more hetero atoms selected from N, S, and O and optionally having fused thereto a further ring; X is an optional group selected from O, S, —S?O, —S(?O)2, —C?O, —S(?O)2NR8, —C?ONR9, and —NR10, wherein n and p are independently selected from 0 and 1; Y is (R11)1-3 wherein each R11 is independently selected from —NR12, —CR13R14, —S(?O)2 and —C?O; Z is selected from (i) six or seven membered ring containing carbon and at least one nitrogen, which may be optionally substituted wherein the substituents may together form further ring fused thereto; and (ii) a —R15—NR16— group.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: February 21, 2012
    Assignee: Sterix Limited
    Inventors: Nigel Vicker, Joanna Mary Day, Helen Victoria Bailey, Wesley Heaton, Ana Maria Ramos Gonzalez, Christopher Mark Sharland, Michael John Reed, Atul Purohit, Barry Victor Lloyd Potter
  • Publication number: 20120041207
    Abstract: A compound having Formula I wherein one of R1 and R2 is a group of the formula wherein R4 is selected from H and hydrocarbyl, R5 is a hydrocarbyl group and L is an optional linker group, or R1 and R2 together form a ring substituted with the group wherein R3 is H or a substituent, and wherein X is selected from S, O, NR6 and C(R7)(R8), wherein R6 is selected from H and hydrocarbyl groups, wherein each of R7 and R8 are independently selected from H and hydrocarbyl groups.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 16, 2012
    Applicant: Sterix Limited
    Inventors: Nigel Vicker, Su Xiangdong, Dharshini Ganeshapillai, Atul Purohit, Michael John Reed, Barry Victor Lloyd Potter
  • Patent number: 8030296
    Abstract: There is provided a compound of Formula I wherein X is a ring system; R1 is any one of a sulphamate group, a phosphonate group, a thiophosphonate group, a sulphonate group or a sulphonamide group; R2 is any one of a sulphamate group, a phosphonate group, a thiophosphonate group, a sulphonate group or a sulphonamide group; wherein when X is a steroidal structure and both of R1 and R2 are sulphamate groups, the steroidal ring system (X) represents an oestrogen; and wherein said compound is capable of inhibiting steroid sulphatase (STS) activity and/or is capable of acting as a modulator of cell cycling and/or as a modulator of apoptosis and/or as a modulator of cell growth.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: October 4, 2011
    Assignee: Sterix Limited
    Inventors: Barry Victor Lloyd Potter, Michael John Reed, Lok Wai Lawrence Woo, Hatem Hejaz, Bertrand Leblond, Matthew Paul Leese, Atul Purohit
  • Patent number: 8026229
    Abstract: The present invention relates to the use of 2-alkoxyestrogen sulfamates of general formula I wherein R1 and R2 independently represent H, methyl, C1-C4 acyl, benzoyl R3 represents C1-C4 alkyl or a group of formula CnFmHo, wherein n=1, 2, 3, 4, 5 or 6, m>1, and m+o=2n+1, R4 and R5 in each case represent H or, together, a methylene group or an additional double bond, R6 represents H, R7 represents OH, OC1-C4-alkyl, OC1-C11-acyl or OSO2NR1R2, the dashed lines in the B and C rings of the steroid skeleton additionally representing up to two double bonds, for the production of a medical drug for the treatment of tumor diseases which can be affected positively by inhibiting the tubulin polymerization. The inventive compounds are distinguished by the 2-alkoxy substitution in conjunction with the 17-hydroxy substitution. They have a special effect with regard to inhibiting tubulin polymerization and can be used, for example, for the treatment of prostate cancers.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: September 27, 2011
    Assignee: Sterix Limited
    Inventors: Ina Scherlitz-Hofmann, Jens Hoffmann, Alexander Hillisch, Eberhard Unger, Tobias Neumann, Sigfrid Schwarz, Olaf Peters, Thomas Michel
  • Patent number: 8022224
    Abstract: There is provided a compound of Formula I wherein R3, R4, R5, R6 and R7 are independently selected from H and —Y—R8; wherein each R8 is independently selected from —OH, hydrocarbyl groups, oxyhydrocarbyl groups, cyano (—CN), nitro (—NO2), H-bond acceptors, and halogens; wherein at least one of R3, R4, R5, R6 and R7 is —Y—R8 wherein R8 is selected from substituted and unsubstituted heterocyclic rings and amino substituted phenyl groups, wherein X is a bond or a linker group; wherein Y is an optional linker group; and wherein ring A is optionally further substituted; wherein R9 is selected from H, —OH and —OSO2NR1R2; wherein R1 and R2 are independently selected from H and hydrocarbyl; wherein (a) X is a bond and at least one of R3, R4, R5, R6 and R7 is —Y—R8; OR (b) R9 is —OSO2NR1R2 or —OH and four of R3, R4, R5, R6 and R7 are H and one of R3, R4, R5, R6 and R7 is —Y—R8. These compounds inhibit steroid sulphatase and aromatase activity and are useful in the treatment of endocrine-dependent tumors.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: September 20, 2011
    Assignee: Sterix Limited
    Inventors: Lok Wai Lawrence Woo, Toby Jackson, Atul Purohit, Michael John Reed, Barry Victor Lloyd Potter
  • Patent number: 8003783
    Abstract: There is provided a compound of Formula (III) wherein R1 is a selected from an alkyloxyalkyl group, a nitrile group, alkylaryl group, alkenylaryl group, alkylheteroaryl group, alkenylheteroaryl group, ?N—O—alkyl or ?N—O—H group, branched alkenyl, alkyl-alcohol group, amide or alkylamide or —CHO so that R1 together with R3 provide the enol tautomer or R1 together with R3 form a pyrazole, wherein (a) R4 is ?N—O-alkyl or ?N—O—H group, (b) the pyrazole is substituted with one of alkyl-OH group, alkyl ester group, alkyloxyalkyl group, branched alkyl group, and an amide and/or (c) the 2-position is substituted with a group selected from —OH and —O-hydrocarbyl or a heteroaryl ring; R2 is selected from —OH and a sulphamate group; and R3 is selected from —OH or ?O; wherein the ring system may be further substituted with one or more hydroxyl, alkyl, alkoxy, alkinyl or halo substituents.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: August 23, 2011
    Assignee: Sterix Limited
    Inventors: Nigel Vicker, Harshani Rithma Ruchiranani Lawrence, Gillian Margaret Allan, Christian Bubert, Delphine Sophie Marion Fischer, Atul Purohit, Michael John Reed, Barry Victor Lloyd Potter
  • Patent number: 7968561
    Abstract: There is provided a compound having Formula I wherein G is a fluorocarbyl group, and wherein R1 is any one of a sulphamate group, a phosphonate group, a thiophosphonate group, a sulphonate group or a sulphonamide group.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: June 28, 2011
    Assignee: Sterix Limited
    Inventors: Barry Victor Lloyd Potter, Michael John Reed, Lok Wai Lawrence Woo, Atul Purohit, Paul Foster
  • Patent number: 7893284
    Abstract: The present invention provides a compound comprising a steroidal ring system and an optional group R1 selected from any one of —OH, a sulphamate group, a phosphonate group, a thiophosphonate group, a sulphonate group or a sulphonamide group; wherein the D ring of the steroidal ring system is substituted by a group R2 of the formula -L-R3, wherein L is an optional linker group and R3 is selected from groups which are or which comprise one of a nitrite group, an alcohol, an ester, an ether, an amine and an alkene, provided that when R3 is or comprises an alcohol, L is present; and wherein the A ring of the steroidal ring system is substituted at position 2 or 4 with a group R4, wherein R4 is a hydrocarbyl group.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: February 22, 2011
    Assignee: Sterix Limited
    Inventors: Matthew Leese, Atul Purohit, Michael John Reed, Simon Paul Newman, Surinder Kuman Chander, Fabrice Jourdan, Barry Victor Lloyd Potter
  • Patent number: 7846965
    Abstract: A compound is described. In particular, a non-steroidal sulphamate compound is described. The compound is suitable for use as an inhibitor of oestrone sulphatase. The compound is of general Formula (A), wherein R1-R6 are independently selected from H, halo, hydroxy, sulphamate, alkyl and substituted variants or salts thereof; but wherein at least one of R1-R6 is a sulphamate group; and wherein X is any one of S, NH, a substituted N, CH2, or a substituted C.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: December 7, 2010
    Assignee: Sterix Limited
    Inventors: Michael John Reed, Barry Victor Lloyd Potter
  • Publication number: 20100286204
    Abstract: There is provided a compound having Formula I wherein each of R1, R2, R3, R4, R5, R6, R7, R8 and R9 are independently selected from (a) H, (b) R13, —OC(R13)3, —OCH(R13)2, —OCH2R13, C(R13)3, —CH(R13)2, or —CH2R13 wherein R13 is a halogen; (c) —CN; (d) optionally substituted alkyl, (e) optionally substituted heteroalkyl; (f) optionally substituted aryl; (g) optionally substituted heteroaryl; (h) optionally substituted arylalkyl; (i) optionally substituted heteroarylalkyl; (j) hydroxy; (k) alkoxy; (l) aryloxy; (m) —SO2-alkyl; and (n) —N(R14)C(O)R15, wherein R14 and R15 are independently selected from H and hydrocarbyl, wherein the optional substituents of (d) (e) (f) (h) and (i) are selected from the group consisting of: C1-6 alkyl, halo, cyano, nitro, haloalkyl, hydroxy, C1-6 alkoxy, carboxy, carboxyalkyl, carboxamide, mercapto, amino, alkylamino, dialkylamino, sulfonyl, sulfonamido, aryl and heteroaryl; wherein n and p are independently selected from 0 and 1; X is an optional group selected from O, S, S=0
    Type: Application
    Filed: November 19, 2008
    Publication date: November 11, 2010
    Applicant: Sterix Limited
    Inventors: Nigel Vicker, Helen Victoria Bailey, Wesley Heaton, Joanna Mary Day, Atul Purohit, Barry Victor Lloyd Potter
  • Publication number: 20100222299
    Abstract: The present invention involves tetrahydroisoquinoline compounds and their use in the inhibition and/or prevention of tumor growth.
    Type: Application
    Filed: March 27, 2008
    Publication date: September 2, 2010
    Applicant: Sterix Limited
    Inventors: Fabrice Jourdan, Meriel Kimberley, Matthew Leese, Barry Victor Lloyd Potter, Atul Purohit, Michael John Reed
  • Patent number: 7786152
    Abstract: A compound having Formula I wherein one of R1 and R2 is a group of the formula wherein R4 is selected from H and hydrocarbyl, R5 is a hydrocarbyl group and L is an optional linker group, or R1 and R2 together form a ring substituted with the group wherein R3 is H or a substituent, and wherein X is selected from S, O, NR6 and C(R7)(R8), wherein R6 is selected from H and hydrocarbyl groups, wherein each of R7 and R8 are independently selected from H and hydrocarbyl groups.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: August 31, 2010
    Assignee: Sterix Limited
    Inventors: Nigel Vicker, Su Xiangdon, Dharshini Ganeshapillai, Atul Purohit, Michael John Reed, Barry Victor Lloyd Potter
  • Patent number: RE42132
    Abstract: This invention relates to 2-substituted D-homo-estra-1,3,5(10)-trien-3-yl sulfamates of general formula I (I), in which R3 means a C1-C5-alkyl or C1-C5-alkyloxy group as well as their use for the production of a pharmaceutical agent for treating tumor diseases, which can be influenced positively by the inhibition of tubulin polymerization. The compounds according to the invention are distinguished by a D-homo-substitution.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: February 8, 2011
    Assignee: Sterix Limited
    Inventors: Alexander Hillisch, Olaf Peters, Christian Gege, Gerhard Siemeister, Eberhard Unger, Bernd Menzenbach