Patents Assigned to Trigen Limited
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Publication number: 20090221564Abstract: Heterocyclic compounds of the formula (I) are provided: wherein ring A, ring B, R1, R2, R3, R4, Y, m, n and q are as identified herein. R1 is in particular amidino. The invention further provides particular benzothiophene compounds. Compounds of the invention may be useful as inhibitors of Factor IXa and in the therapy of cardiovascular conditions and diseases, e.g. thrombosis.Type: ApplicationFiled: February 20, 2007Publication date: September 3, 2009Applicant: TRIGEN LIMITEDInventors: Shouming Wang, Toby Jonathan Blench, Frederic Marlin, Richard Beck, Roger Peter Dickinson
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Patent number: 7371729Abstract: Salts of a peptide boronic acid drug, for example of Cbz-(R)-Phe-(S)-Pro-(R)-Mpg-B(OH)2. The counter-ion to the boronate may be an alkali metal or derived from a strongly basic organic nitrogen-containing compound.Type: GrantFiled: September 9, 2003Date of Patent: May 13, 2008Assignee: Trigen LimitedInventors: David Jonathan Madge, Mark Dolman, Sophie Marie Combe-Marzelle, John Joseph Deadman, Anthony James Kennedy, Sanjay Kumar Kakkar
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Publication number: 20070185060Abstract: A thrombin inhibitor selected from boronic acids of formula (I), and salts, prodrugs and prodrug salts thereof: wherein X is H (to form NH2) or an amino-protecting group; aa1 is an amino acid residue having a side chain selected from formula (A) and (B)—(CO)a—(CH2)b-Dc-(CH2)d-E (A), —(CO)a—(CH2)b-Dc-Ce(E1)(E2)(E3) wherein E1, E2 and E3 are 5-6 membered saturated or unsaturated hydrocarbyl rings, or one of E1, E2 and E3 is hydrogen and the other two are a said hydrocarbyl ring, E, E1, E2 and E3 optionally being halogenated when saturated and mandatorily being halogenated when unsaturated, a particular halogen being fluorine; aa2 is a residue of an amino acid which binds to the thrombin S2 subsite; and R9 is a straight chain alkyl group interrupted by one or more ether linkages or R9 is —(CH2)mW and W is —OH or halogen.Type: ApplicationFiled: March 9, 2005Publication date: August 9, 2007Applicant: TRIGEN LIMITEDInventor: Shouming Wang
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Patent number: 7112572Abstract: Salts of a pharmaceutically acceptable divalent metal and an organoboronic acid drug. Examples of such metals are calcium, magnesium and zinc. The organoboronic acid drug may be a boropeptide protease inhibitor. The salts may be formulated in oral dosage form.Type: GrantFiled: September 9, 2003Date of Patent: September 26, 2006Assignee: Trigen LimitedInventors: John Joseph Deadman, David Jonathan Madge, Mark Dolman, Sanjay Kumar Kakkar, Anthony James Kennedy, Sophie Marie Combe-Marzelle, Suresh Babubhai Chahwala, Oliver Vimpany Arnold Boucher
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Publication number: 20040147453Abstract: Salts of a pharmaceutically acceptable divalent metal and an organoboronic acid drug. Examples of such metals are calcium, magnesium and zinc. The organoboronic acid drug may be a boropeptide protease inhibitor. The salts may be formulated in oral dosage form.Type: ApplicationFiled: September 9, 2003Publication date: July 29, 2004Applicant: Trigen LimitedInventors: John Joseph Deadman, David Jonathan Madge, Mark Dolman, Sanjay Kumar Kakkar, Anthony James Kennedy, Sophie Marie Combe-Marzelle, Suresh Babubhai Chahwala, Oliver Vimpany Arnold Boucher
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Publication number: 20040138175Abstract: Salts of a peptide boronic acid drug, for example of Cbz—(R)—Phe—(S)—Pro—(R)—Mpg—B(OH)2. The counter-ion to the boronate may be an alkali metal or derived from a strongly basic organic nitrogen-containing compound.Type: ApplicationFiled: September 9, 2003Publication date: July 15, 2004Applicant: Trigen LimitedInventors: David Jonathan Madge, Mark Dolman, Sophie Marie Combe-Marzelle, John Joseph Deadman, Anthony James Kennedy, Sanjay Kumar Kakkar
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Patent number: 6451976Abstract: Dendroaspin, a polypeptide neurotoxin analogue is modified by recombinant DNA techniques, particularly “loop grafting” to provide a modified polypeptide. The modified polypeptide is constructed so as to retain dendroaspin activity, for example, platelet adhesion to fibrinogen, in addition to possessing one or more further biological or biochemical activities not native to dendroaspin, for example, platelet derived growth factor (PDGF) activity or hirudin activity.Type: GrantFiled: September 20, 1999Date of Patent: September 17, 2002Assignee: Trigen LimitedInventors: Xinjie Lu, Michael F. Scully, Vijay V. Kakkar, Kalwant S. Authi
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Patent number: 6350731Abstract: Novel peptide analogues of platelet-derived growth factor, for use in inhibiting or stimulating growth and/or chemotaxis of cells, for example, smooth muscle cells, are provided. Also provided are compositions of matter comprising those peptide analogues.Type: GrantFiled: November 2, 1999Date of Patent: February 26, 2002Assignee: Trigen LimitedInventors: Ahmed Mohammed Taki Jehanli, Geeta Patel, Yemisi Olabiran, David Mark Brennand, Vir Vijay Kakkar
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Patent number: 6313096Abstract: Pharmaceutical compositions comprising compounds of the formula: in which X=H or is an N-protecting group; Y is 1-10 á-amino acids; Q1 and Q2 taken together represent the residue of a diol; R is C1-4alkyl; and the asymmetric carbon atom marked * may have the D- or L-configuration, are useful in therapeutic methods of inhibiting thrombin.Type: GrantFiled: April 7, 2000Date of Patent: November 6, 2001Assignee: Trigen LimitedInventors: Goran Claeson, Manfred Hans Wilhelm Philipp
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Patent number: 6127340Abstract: This invention is directed to peptide inhibitors of serine proteases, espcecially thrombin, in which the P1-P2 natural amide linkage is replaced by another bond. Exemplary thrombin inhibitors have the formula: X-(aa.sup.3)-(aa.sup.2)-.psi.-(aa.sup.1)-Z wherein X is H or a substituent on the N-terminal amino group, aa.sup.3 is a hydrophobic amino acid, aa.sup.23 is Pro, aa.sup.1 is Arg or an Arg analgoue, Z is --COOH or a heteroatom acid group and .psi. is a non-amide linkage.Type: GrantFiled: March 30, 1998Date of Patent: October 3, 2000Assignee: Trigen LimitedInventors: Donovan St. Clair Green, Said Mohammed Anwr Ahmed Elgendy, Geeta Patel, Michael Finbar Scully, Christopher Andrew Goodwin, Vijay Vir Kakkar, John Joseph Deadman
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Patent number: 6114308Abstract: Pharmaceutical compositions comprising compounds of the formula: ##STR1## in which X.dbd.H or is an N-protecting group; Y is 1-10 .alpha.-amino acids; Q1 and Q2 taken together represent the residue of a diol; R is C.sub.1-4, alkyl; and the asymmetric carbon atom marked * may have the D- or L-configuration, are useful in therapeutic methods of inhibiting thrombin.Type: GrantFiled: May 14, 1998Date of Patent: September 5, 2000Assignee: Trigen LimitedInventors: Goran Claeson, Manfred Hans Wilhelm Phillip
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Patent number: 6001802Abstract: This invention relates to cyclic platelet-derived growth factor (PDGF) analogues and pharmaceutical compositions thereof.Type: GrantFiled: July 7, 1998Date of Patent: December 14, 1999Assignee: Trigen LimitedInventors: Taki Ahmed Mohammed Jehanli, Geeta Patel, Yemisi Olabiran, Mark David Brennand, Vir Vijay Kakkar
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Patent number: 5952304Abstract: Novel peptide analogues of platelet-derived growth factor, for use in inhibiting or stimulating growth and/or chemotaxis of cells, e.g., smooth muscle cells, are provided. Also provided are compositions of matter comprising those peptide analogues.Type: GrantFiled: April 19, 1996Date of Patent: September 14, 1999Assignee: Trigen LimitedInventors: Ahmed Mohammed Taki Jehanli, Geeta Patel, Yemisi Olabiran, David Mark Brennand, Vir Vijay Kakkar
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Patent number: 5858979Abstract: This invention provides peptides of the formula ##STR1## wherein X is H, CH.sub.3 or an N-protecting group;Y is(1) C.sub.3 -C.sub.9 alkyl optionally substituted by C.sub.1 -C.sub.4 alkoxy,(2) C.sub.5 -C.sub.10 aryl optionally substituted by C.sub.1 -C.sub.4 alkoxy,(3) C.sub.5 -C.sub.10 alkylaryl optionally substituted by C.sub.1 -C.sub.4 alkoxy,(4) (CH.sub.2).sub.n --Q or ##STR2## wherein Q is H, amino, amidino, imidizole, guanidino or isothioureido and n is 1-5;Z is COR.sub.1, ##STR3## wherein: R.sub.1 is H, OH, CH.sub.2 Cl, CH.sub.2 --CH.sub.2 --CO-pip, CF.sub.2 --CF.sub.2 --CO-pip, CH.sub.2 --CH(CH.sub.3)--CO-pip, CF.sub.2 --CF(CF.sub.3)--CO-pip, CH.sub.2 --CH.sub.2 --CO-Pro-NHEt, CF.sub.2 --CF.sub.2 --CO-Pro-NHEt or a chromophoric group,R.sub.2 and R.sub.3 may be the same or different and are selected from the group consisting of OH, OR.sub.6 and NR.sub.6 R.sub.7, wherein R.sub.6 and R.sub.7 may be the same or different and are selected from the group consisting of C.sub.1-10 alkyl, phenyl or C.sub.6 -C.Type: GrantFiled: June 2, 1995Date of Patent: January 12, 1999Assignee: Trigen LimitedInventors: Vijay Vir Kakkar, John Joseph Deadman, Goran Karl Claeson, Leifeng Cheng, Naoyashi Chino, Said Mohamed Anwar Elgendy, Michael Finbarr Scully
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Patent number: 5856306Abstract: Pharmaceutical compositions comprising compounds of the formula: ##STR1## in which X.dbd.H or is an N-protecting group; Y is 1-10 .alpha.-amino acids; Q1 and Q2 taken together represent the residue or a diol; R is C.sub.1-4 alkyl; and the asymmetric carbon atom marked * may have the D- or L-configuration, are useful in therapeutic methods of inhibiting thrombin.Type: GrantFiled: June 2, 1995Date of Patent: January 5, 1999Assignee: Trigen, LimitedInventors: Goran Claeson, Manfred Hans Wilhelm Philipp, Rainer Metternich