Phosphorus Attached Directly To The Six-membered Hetero Ring By Nonionic Bonding Patents (Class 546/21)
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Publication number: 20030153762Abstract: A process for preparing 1H-imidazo[4,5-c]quinolin-4-amines is disclosed. The process involves reacting a 6H-imidazo[4,5-c]tetrazolo[1,5-a]quinoline with triphenylphosphine and hydrolyzing the product thereof.Type: ApplicationFiled: February 6, 2003Publication date: August 14, 2003Applicant: 3M Innovative Properties CompanyInventors: John F. Gerster, Kyle J. Lindstrom
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Patent number: 6579989Abstract: A sulphostin analogue represented by the general formula, wherein n is an integer of from 0 to 3, provided that a case where n is 2 and steric configurations of C* and P* are S and R, respectively, is excluded, or a pharmaceutically acceptable salt thereof.Type: GrantFiled: November 13, 2001Date of Patent: June 17, 2003Assignee: Zaidan Hojin Biseibutsu Kagaku Kenkyu KaiInventors: Tomio Takeuchi, Yasuhiko Muraoka, Masatoshi Abe, Tetsuo Akiyama, Shigeko Harada
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Publication number: 20030065181Abstract: The present invention relates to novel chiral phosphorus compounds which can be readily prepared from quinoline derivatives as inexpensive starting compounds and have the general formula I 1Type: ApplicationFiled: February 1, 2002Publication date: April 3, 2003Inventors: Walter Leitner, Giancarlo Francio, Felice Faraone, Carmela Arena
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Publication number: 20030032808Abstract: This invention provides an amido ligand and its synthesis. Use of the amide ligand in a variety of metal complexes, and transition metals in particular, is also provided.Type: ApplicationFiled: April 2, 2002Publication date: February 13, 2003Inventors: Jonas C. Peters, Steven D. Brown, Seth B. Harkins
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Patent number: 6518258Abstract: The invention relates to a compound of formula (I): wherein: X represents chlorine or fluorine or CF3, R represents hydrogen or a group and methods for using the same.Type: GrantFiled: February 14, 2001Date of Patent: February 11, 2003Assignee: Les Laboratoires ServierInventors: Alex Cordi, Patrice Desos, Pierre Lestage
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Publication number: 20030027797Abstract: This invention provides compounds of Formula I having the structure 1Type: ApplicationFiled: September 5, 2002Publication date: February 6, 2003Applicant: WyethInventors: Fuk-Wah Sum, Baihua Hu
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Patent number: 6498170Abstract: This invention provides compounds of Formula I having the structure wherein R1, R2, R3, W, X, and Z are as defined hereinbefore or a pharmaceutically acceptable salt thereof, which are useful in treating metabolic disorders related to insulin resistance or hyperglycemia.Type: GrantFiled: July 12, 2001Date of Patent: December 24, 2002Assignee: WyethInventors: Fuk-Wah Sum, Baihua Hu
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Publication number: 20020188127Abstract: A process for preparing 1H-imidazo[4,5-c]quinolin-4-amines is disclosed. The process involves reacting a 6H-imidazo[4,5-c]tetrazolo[1,5-a]quinoline with triphenylphosphine and hydrolyzing the product thereof.Type: ApplicationFiled: June 26, 2002Publication date: December 12, 2002Applicant: 3M Innovative Properties CompanyInventors: John F. Gerster, Kyle J. Lindstrom
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Publication number: 20020187928Abstract: The invention provides a compound of formula (I): 1Type: ApplicationFiled: May 30, 2001Publication date: December 12, 2002Inventors: Lixin Qiao, Rene Etcheberrigaray
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Patent number: 6486143Abstract: The invention relates to a compound of formula (I): wherein: R1 represents halogen or a group CF3, R2 represents hydrogen or alkyl or cycloalkyl, R3 is as defined in the description, R4 and R5 represent hydrogen or alkyl, cycloalkyl, aryl or arylalkyl a group Medicaments.Type: GrantFiled: February 15, 2001Date of Patent: November 26, 2002Assignee: Les Laboratoires ServierInventors: Alex Cordi, Patrice Desos, Pierre Lestage
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Patent number: 6479471Abstract: The present disclosure relates to dipeptidase inhibitors, and more particularly, to novel phosphonate derivatives, hydroxyphosphinyl derivatives, and phosphoramidate derivatives that inhibit N-Acetylated &agr;-Linked Acidic Dipeptidase (NAALADase) enzyme activity, pharmaceutical compositions comprising such derivatives, and methods of using such derivatives to inhibit NAALADase activity, and to treat prostate diseases, especially using the compounds of the present invention for the inhibition of the growth of prostate cancer cells.Type: GrantFiled: December 17, 1999Date of Patent: November 12, 2002Assignee: Guilford Pharmaceuticals Inc.Inventors: Paul F. Jackson, Barbara S. Slusher, Kevin L. Tays, Keith M. Maclin
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Publication number: 20020161227Abstract: A substituted aromatic compound substituted with Q is obtained by reacting a phosphazenium compound represented by formula (1) 1Type: ApplicationFiled: December 20, 2001Publication date: October 31, 2002Inventors: Tadahito Nobori, Setsuko Fujiyoshi, Isao Hara, Takaomi Hayashi, Atsushi Shibahara, Katsuhiko Funaki, Kazumi Mizutani, Shinji Kiyono
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Publication number: 20020128208Abstract: The disclosed invention is a composition agonists and/or antagonists of V2, V1a or both receptors, in a host, including animals, and especially humans, using a small molecule or its pharmaceutically acceptable salt or prodrug.Type: ApplicationFiled: December 17, 2001Publication date: September 12, 2002Inventors: James P. Snyder, Dennis C. Liotta, Hariharan Venkatesan, Minmin Wang, Matthew C. Davis
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Patent number: 6420386Abstract: The invention relates to a compound of formula (I): wherein: R1 represents halogen or a group CF3, R2 represents aryl or heteroaryl, R3 and R4 are as defined in the description and methods for using the same.Type: GrantFiled: February 14, 2001Date of Patent: July 16, 2002Assignee: Les Laboratories ServierInventors: Alex Cordi, Patrice Desos, Pierre Lestage
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Publication number: 20020077479Abstract: The invention relates to the combinatorial approaches to the preparation of novel polymer-supported heteroatom bidentate (PN, PO, PS) ligand libraries and the corresponding free compounds after cleavage from the supports. These compounds are useful as novel ligands in the preparation of metal-containing catalysts.Type: ApplicationFiled: April 11, 2001Publication date: June 20, 2002Inventor: George Y. Li
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Patent number: 6395749Abstract: The present invention provides carboxamine compounds, methods and compositions for inhibiting PARP activity.Type: GrantFiled: September 1, 1998Date of Patent: May 28, 2002Assignee: Guilford Pharmaceuticals Inc.Inventors: Jia-He Li, Jie Zhang
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Publication number: 20020058814Abstract: The invention relates to the preparation of enantiomerically pure bis-diphenylphosphine oxides in a particularly advantageous manner by (1) reacting an aromatic bromine compound with a diphenylphosphinic chloride in a mixture of tetrahydrofuran and an aromatic hydrocarbon to give a diphenylphosphine oxide, which is isolated from a solution in an aromatic hydrocarbon by adding a saturated aliphatic hydrocarbon; (2) metalating the resulting diphenylphosphine oxide in the 6-position and reacting the metalated diphenylphosphine oxide with iodine at temperatures not less than −25° C.Type: ApplicationFiled: November 13, 2001Publication date: May 16, 2002Inventors: Torsten Pohl, Thomas Prinz, Guido Giffels, Wolfram Sirges
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Publication number: 20020058646Abstract: The present invention is directed to a series of substituted pyridine compounds, a method for selectively controlling neurotransmitter release in mammals using these compounds, and pharmaceutical compositions containing these compounds. Preferred compounds are 3′-(5′- and/or 6′-substituted) pyridyl ethers.Type: ApplicationFiled: February 1, 2001Publication date: May 16, 2002Inventors: Nan-Horng Lin, Liming Dong
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Patent number: 6380333Abstract: Olefin co- or homopolymers having a good molecular weight and short chain branching may be prepared in the presence of a pyridyl bridged bisphosphinimine complex of a Group 8, 9 or 10 metal.Type: GrantFiled: August 10, 2000Date of Patent: April 30, 2002Assignee: NOVA Chemicals (International) S.A.Inventors: Wei Xu, Qinyan Wang
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Publication number: 20020022605Abstract: This invention provides compounds of Formula I having the structure 1Type: ApplicationFiled: July 12, 2001Publication date: February 21, 2002Applicant: American Home Products CorporationInventors: Fuk-Wah Sum, Baihua Hu
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Publication number: 20020016504Abstract: To provide a process for preparing phosphine oxides comprising reacting iminophosphoranes with phosphorus oxytrichloride by which highly purified phosphine oxides can be obtained industrially in a higher yield.Type: ApplicationFiled: August 24, 2001Publication date: February 7, 2002Inventors: Tadahito Nobori, Isao Hara, Katsuhiko Funaki, Takaomi Hayashi, Atsushi Shibahara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki
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Patent number: 6344560Abstract: A nitroaromatic compound is used to enhance the solubility of a nitroxyl compound in an aromatic hydrocarbon solvent.Type: GrantFiled: May 3, 2000Date of Patent: February 5, 2002Assignee: Uniroyal Chemical Company, Inc.Inventors: Brendan J. Geelan, Brigitte Benage, Gerald J. Abruscato, Kirk A. Schlup, Ruben S. Grewal, Andrew J. Eisenstein
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Publication number: 20010031746Abstract: The invention relates to a compound of formula (I): 1Type: ApplicationFiled: February 15, 2001Publication date: October 18, 2001Inventors: Alex Cordi, Patrice Desos, Pierre Lestage
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Patent number: 6294545Abstract: A compound of formula (I) wherein A is a bidentate group of the formula: XC═CY or XCH—CHY (wherein X and Y are independently hydrogen, hydroxy, acyloxy, alkoxy, cyano or halogen); and Ar is optionally substituted phenyl or optionally substituted heteroaryl; or an acid addition salt, quaternary ammonium salt or N-oxide derived therefrom; provided that when A is CH2—H2 then Ar is neither 5-chloropyrid-3-yl nor 5-trifluoromethylpyrid-3-yl; an insecticidal, acaricidal or nematicidal composition comprising an insecticidally, acaricidally or nematicidally effective amount of a compound of formula (I); a method of using a compound of formula (I) to combat or control insect, acarine or nematode pests; and processes for preparing a compound of said formula.Type: GrantFiled: May 12, 2000Date of Patent: September 25, 2001Assignee: Syngenta LimitedInventors: Christopher John Urch, Roger Salmon
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Patent number: 6271378Abstract: Disclosed is a process for preparing a compound having the formula: wherein R1 is selected from the group consisting of: alkyl, alkenyl, alkynyl, aryl, aralkyl, cycloalkyl, and cycloalkylalkyl, R1 being optionally substituted by substituents selected from halo, —OH, alkyl, alkoxy, or —CF3, said process comprising the following steps: (a) reacting a ketone having the formula with a carbanion having the formula wherein R1 is as defined above, and R2 and R3 are independently selected from the group consisting of —ORA and —RA, wherein RA is alkyl, phenyl, substituted phenyl, cycloalkyl, substituted cycloalkyl, cycloalkylalkyl, or substituted cycloalkylalkyl; (b) treating the reaction mixture from step (a) with a protonating agent; and (c) thermally decomposing the product of 16, to form the compound of formula (I). The compounds made by this process have antihistaminic activity, e.g., loratadine.Type: GrantFiled: December 16, 1999Date of Patent: August 7, 2001Assignee: Schering CorporationInventors: Henry J. Doran, Pat M. O'Neill
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Patent number: 6262222Abstract: Copolymers containing N-vinyllactam derivatives protected at 3-position are provided and represented by the following formula. The copolymers are used as a photoresist material suitable for deep uv process so that high sensitivity and resolution can be obtained. In addition, ultrafine circuits can be formed and an exceptional improvement in PED stability can be accomplished by use of the photoresist.Type: GrantFiled: October 8, 1998Date of Patent: July 17, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jin Baek Kim, Min Ho Jung, Jong Ho Cheong
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Patent number: 6221898Abstract: There is provided compounds of formula I, wherein R1, R2, R3, Y, n and B have meanings given in the description which are useful as competitive inhibitors of trypsin-like proteases, such as thrombin, and in particular in the treatment of conditions where inhibition of thrombin is required (e.g. thrombosis) or as anticoagulants.Type: GrantFiled: August 29, 1997Date of Patent: April 24, 2001Assignee: Astra AktiebolagInventor: Thomas Antonsson
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Patent number: 6201123Abstract: A catalyst composition for organic a symmetric synthesis is provided, which comprises: (A) a lanthanoid element ion; (B) a binaphthol, and (C) a nitrogen and/or phosphorus compound such as lutidine-N-oxide, 1,3-dimethyl-2-imidazolldinone, hexamethyl-phosphortriamide, triphenylphosphine oxide, tri(2-methylphenyl)phosphine oxide or tri(4-methylphenyl )phosphine oxide. Asymmetric epoxidation of an enone is conducted by allowing an enone to react with an oxidizing agent in the presence of the catalyst composition or a catalyst solution containing the catalyst composition.Type: GrantFiled: May 21, 1999Date of Patent: March 13, 2001Assignee: Techno Polymer Co., Ltd.Inventors: Kazuhiro Daikai, Masahiro Kamaura, Takeshi Hanamoto, Junji Inanaga
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Patent number: 6172050Abstract: Phospholipid derivatives of Formula X: wherein A is the ring system in which R is a linear or branched alkyl radical having 10 to 24 carbon atoms which may contain one or more double or triple bonds; R1 and R2 are independently hydrogen or linear alkyl radicals having 1 to 3 carbon atoms; y is 0, 1, 2 or 3; m and n are independently 0 or in an integer, with the proviso that m+n is between 2 and 8; or A is a tropanio or quinuclidinio ring system, which is linked via a carbon-carbon bond and is optionally substituted by one or more methyl groups; processes for the preparation of the derivatives, and methods for treating tumors therewith.Type: GrantFiled: August 4, 1997Date of Patent: January 9, 2001Assignee: Asta Medica AktiengesellschaftInventors: Gerhard Nössner, Bernhard Kutscher, J{umlaut over (u)}rgen Engel, Wolfgang Schumacher, Jurij Stekar, Peter Hilgard
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Patent number: 6121278Abstract: A compound of formula I: ##STR1## or a pharmaceutically acceptable salt, hydrate, ester, solvate, prodrug, metabolite, stereoisomer, or mixtures thereof, wherein:Y represents the atoms necessary to form a fused 5- to 6-membered, aromatic or non-aromatic, heterocyclic ring containing at least one nitrogen heteroatom in a 1,3-relationship with the nitrogen atom depicted in formula I, wherein Y may be unsubstituted or substituted with at least one alkyl, alkenyl, cycloalkyl, cycloalkenyl, aralkyl, aryl, double bonded oxygen, or --COOR.sup.5 group, or a moiety selected from the group consisting of: ##STR2## wherein R.sup.5 and R.sup.7 are independently hydrogen or alkyl, alkenyl, cycloalkyl, cycloalkenyl, aralkyl, or aryl.Type: GrantFiled: September 1, 1998Date of Patent: September 19, 2000Assignee: Guilford Pharmaceuticals, Inc.Inventors: Paul F. Jackson, Keith M. Maclin, Jie Zhang
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Patent number: 6117885Abstract: Compounds of the formula ##STR1## wherein X, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, A, B, D and E are as defined herein. These compounds inhibit the action of angiotensin II and are useful, therefore, for example, as antihypertensive agents.Type: GrantFiled: February 24, 1994Date of Patent: September 12, 2000Assignee: E. R. Squibb & Sons, Inc.Inventors: Denis Evan Ryono, John Lloyd
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Patent number: 6051678Abstract: Copolymers containing N-vinyllactam derivatives protected at 3-position are provided and represented by the following formula. The copolymers are used as a photoresist material suitable for deep uv process so that high sensitivity and resolution can be obtained. In addition, ultrafine circuits can be formed and an exceptional improvement in PED stability can be accomplished by use of the photoresist.Type: GrantFiled: March 13, 1997Date of Patent: April 18, 2000Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jin Baek Kim, Min Ho Jung, Jong Ho Cheong
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Patent number: 6028216Abstract: The present invention relates to asymmetric syntheses and intermediates for preparing enantiomer-enriched hydroxyphosphinyl derivatives.Type: GrantFiled: December 31, 1997Date of Patent: February 22, 2000Assignee: Guilford Pharmaceuticals Inc.Inventors: Guillermo Morales, Weixing Li, Paul F. Jackson
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Patent number: 6025344Abstract: The present disclosure relates to dipeptidase inhibitors, and more particularly, to novel phosphonate derivatives, hydroxyphosphinyl derivatives, and phosphoramidate derivatives that inhibit N-Acetylated .alpha.-Linked Acidic Dipeptidase (NAALADase) enzyme activity, pharmaceutical compositions comprising such derivatives, and methods of using such derivatives to inhibit NAALADase activity, and to treat prostate diseases, especially using the compounds of the present invention for the inhibition of the growth of prostate cancer cells.Type: GrantFiled: May 27, 1997Date of Patent: February 15, 2000Assignee: Guilford Pharmaceuticals Inc.Inventors: Paul F. Jackson, Barbara S. Slusher, Kevin L. Tays, Keith M. Maclin
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Patent number: 6002006Abstract: A compound of the formula ##STR1## wherein alc.sub.1, alc.sub.2 and alc.sub.3 are alkyl of up to 8 carbon atoms, n is an integer from 0 to 8, R.sub.1 and R.sub.Type: GrantFiled: September 28, 1998Date of Patent: December 14, 1999Assignee: Hoechst Marion RousselInventors: Alain Bonnet, Raphael Bouchet, Daniel Guilmard, Alain Mazurie
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Patent number: 5990352Abstract: A salt useful as an active species in an organic reaction and represented by the following chemical formula (1): ##STR1## wherein n stands for an integer of from 1 to 8, Z.sup.n- represents an n-valent anion of an active hydrogen compound, a, b, c and d each stands for a positive integer, and Rs represent the same or different hydrocarbon groups. In addition, a simple and efficient process is provided for producing a poly(alkylene oxide) by polymerizing an alkylene oxide compound in the presence of the salt represented by the chemical formula (1).Type: GrantFiled: February 5, 1997Date of Patent: November 23, 1999Assignee: Mitsui Chemicals, Inc.Inventors: Tadahito Nobori, Masahiro Kouno, Toshiaki Suzuki, Kazumi Mizutani, Shinji Kiyono, Yoshiho Sonobe, Usaji Takaki
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Patent number: 5985855Abstract: The present invention includes compositions and methods of treatment for glutamate abnormalities and associated nervous tissue insult in a animal by inhibition of NAALADase enzyme. Compositions include glutamate-derived hydroxyphosphinyl derivative compounds, acidic peptide analogs, phosphinic acid derivatives and mixtures thereof that inhibit NAALADase enzyme activity and their use for treating glutamate abnormalities such as created by global and focal ischemia.Type: GrantFiled: November 20, 1997Date of Patent: November 16, 1999Assignee: Guilford Pharmaceuticals Inc.Inventors: Barbara S. Slusher, Paul F. Jackson
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Patent number: 5968252Abstract: Compounds of formula ##STR1## wherein R and R' are each independently of the other hydrogen, C.sub.1 -C.sub.18 alkyl, COR.sub.1, COR.sub.2 or COOR.sub.1,X and X' are each independently of the other hydrogen, halogen, OH, NH.sub.2, COOH, C.sub.1 -C.sub.18 -alkyl, isocyclic or heterocyclic aromatic radicals, OR.sub.3, OCOR.sub.3, OCOR.sub.4, OCOR.sub.3, NHR.sub.3, N(R.sub.3).sub.2, NHCOR.sub.3, NHCOR.sub.4 or NHCOOR.sub.3,Y and Y' are each independently of the other hydrogen, halogen, OH, NH.sub.2, nitro, cyano, C.sub.1 -C.sub.18 alkyl, isocyclic or heterocyclic aromatic radicals, COR.sub.5, COR.sub.6, COOR.sub.5, COOR.sub.6, CONH.sub.2, SO.sub.2 R.sub.5, SO.sub.2 R.sub.6, SO.sub.2 NH.sub.2, SO.sub.3 H, PO(OR.sub.5).sub.2 or PO(OH).sub.2, andZ and Z' are each independently of the other hydrogen, halogen, OH, NH.sub.2, COOH, cyano, C.sub.1 -C.sub.18 alkyl, isocyclic or heterocyclic aromatic radicals, OR.sub.7, OR.sub.8, OCOR.sub.7, OCOR.sub.8, OCOOR.sub.7, NHR.sub.7, N(R.sub.7).sub.2, NHR.sub.8, CONH.sub.Type: GrantFiled: March 24, 1998Date of Patent: October 19, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Robert Moretti, Gary Wooden
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Patent number: 5968915Abstract: The present disclosure relates to dipeptidase inhibitors, and more particularly, to N-Acetylated .alpha.-Linked Acidic Dipeptidase (NAALADase) enzyme inhibitors which are proposed as novel agents for the treatment of prostate cancer. NAALADase is enzyme which is a membrane-bound metalloprotease which hydrolyzes the dipeptide, N-acetyl-L-aspartate-L-glutamate (NAAG) to yield glutamate and N-acetylaspartate. The compounds of the present invention include phosphinic acid derivatives that inhibit NAALADase enzyme activity and which have been found useful for inhibiting the growth of prostate cancer cells.Type: GrantFiled: April 8, 1997Date of Patent: October 19, 1999Assignee: Guilford Pharmaceuticals Inc.Inventors: Paul F. Jackson, Barbara S. Slusher
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Patent number: 5925785Abstract: The invention relates to secondary and tertiary phosphines of the formula ##STR1## in which R is hydrogen, an aryl or benzyl group or a straight-chain or branched alkyl group, n is 1 or 2 and M is potassium or sodium.These phosphines are prepared by reacting either alkali metal salts of fluorobenzene-2,4-disulfonic acid with phosphine or with primary or secondary phosphines, or secondary phosphines of the type HP?C.sub.6 H.sub.3 -2,4-(SO.sub.3 M).sub.2 !.sub.2 with a compound RX in which R is an alkyl, aryl or benzyl group and X is a halogen, in an aprotic solvent in the presence of at least stoichiometric quantities of a solid, powdered alkali metal hydroxide at temperatures of from 0 to 100.degree. C.Type: GrantFiled: March 20, 1997Date of Patent: July 20, 1999Assignee: Celanese GmbHInventors: Othmar Stelzer, Oliver Herd, Norbert Weferling
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Patent number: 5922732Abstract: A compound of formula (I): ##STR1## wherein R.sup.1 represents a group of formula (A) where each of W, X, Y and Z and Z represents either a group CR or the nitrogen atom, provided that not more than two of W, X, Y and Z represent the nitrogen atom and where each R present is independently selected from hydrogen and halogen atoms and cyano, amino, hydrazino, acylamino, hydroxy, alkyl, hydroxyalkyl, alkoxy, haloalkyl, haloalkoxy, alkenyl, alkenyloxy, alkoxyalkenyl, alkynyl, carboxylic acyl, alkoxycarbonyl, aryl and heterocyclyl groups, said groups comprising up to 6 carbon atoms, and wherein R.sup.Type: GrantFiled: May 24, 1996Date of Patent: July 13, 1999Assignee: Zeneca LimitedInventors: Christopher John Urch, Roger Salmon, Terence Lewis, Christopher Richard Ayles Godfrey, Martin Stephen Clough
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Patent number: 5908931Abstract: The present invention relates particularly to novel preorganized hexadentate ligands that are suitable for completing with a radionuclide, and are useful as general imaging agents for diagnostic purposes.Type: GrantFiled: December 14, 1990Date of Patent: June 1, 1999Assignee: Mallinckrodt Inc.Inventors: Raghavan Rajagopalan, William L. Neumann, Dennis L. Nosco
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Patent number: 5886182Abstract: Novel, optically active phosphorous compounds of the formula, ##STR1## wherein R.sup.1 represents hydrogen atoms, straight or branched-chain alkyl groups having from 1 to 6 carbon atoms, R.sup.2 represents hydrogen atoms, halogen atoms, lower alkyl groups (1 to 6 carbon atoms), lower alkoxy groups (1 to 6 carbon atoms), hydroxy group, chiral hydroxyalkyl groups, and amino groups (1.degree., 2.degree., 3.degree.) vinyl groups or allyl groups and R.sup.3 represents phenyl groups, aryl groups, cyclohexyl groups, substituted and unsubstituted cycloalkyl groups, heteroaromatic rings, are described. The compounds of the formula serve as highly useful ligands in the preparation of ruthenium complexes which are effective catalysts for the asymmetric hydrogenation of 2-arylpropenoic acids leading to high valued 2-arylpropionic acids.Type: GrantFiled: December 10, 1997Date of Patent: March 23, 1999Assignee: The Hong Kong Polytechnic UniversityInventors: Albert Sun-Chi Chan, Cheng-Chao Pai
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Patent number: 5863536Abstract: The present invention includes phosphoramidate derivatives, compositions containing the same, and methods of using them as NAALADase inhibitors, particularly for the treatment of glutamate abnormalities and associated nervous tissue insult in a animal and for treatment of prostate disease and prostate cancer by inhibition of NAALADase enzyme.Type: GrantFiled: December 31, 1996Date of Patent: January 26, 1999Assignee: Guilford Pharmaceuticals Inc.Inventors: Paul F. Jackson, Barbara S. Slusher, Kevin L. Tays, Keith M. Maclin
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Patent number: 5830915Abstract: The invention provides compounds which are useful as inhibitors of matrix metalloproteases, and which are effective in treating conditions characterized by excess activity of these enzymes. In particular, the present invention relates to a compound having a structure according to Formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are described in the claims, a stereoisomer or enantiomer thereof, or a pharmaceutically-acceptable salt, or biohydrolyzable alkoxyamide, ester acyloxyamide, imide or derivative thereof.Also disclosed are compounds, pharmaceutical compositions and methods of treating diseases characterized by matrix metalloprotease activity using these compounds or the pharmaceutical compositions containing them.Type: GrantFiled: August 26, 1997Date of Patent: November 3, 1998Assignee: The Procter & Gamble CompanyInventors: Stanislaw Pikul, Kelly Lynn McDow-Dunham, Biswanath De, Yetunde Olabisi Taiwo
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Patent number: 5824662Abstract: The present invention includes compositions and methods of treatment for glutamate abnormalities and associated nervous tissue insult in a animal by inhibition of NAALADase enzyme. Compositions include glutamate-derived hydroxyphosphinyl derivative compounds, acidic peptide analogs, phosphinic acid derivatives and mixtures thereof that inhibit NAALADase enzyme activity and their use for treating glutamate abnormalities such as created by global and focal ischemia.Type: GrantFiled: September 27, 1996Date of Patent: October 20, 1998Assignee: Guilford Pharmaceuticals Inc.Inventors: Barbara S. Slusher, Paul F. Jackson
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Patent number: 5808072Abstract: A class of pyridine phosphonate compounds is disclosed that are useful as ligands in the one manufacture of oxidation-reduction catalysts. In particular, pyridine-2,6-disphosphonic acid is a specie of the pyridine phosphonate ligands that can be combined with a polyvalent metal to produce a catalyst to convert hydrogen sulfide to solid sulfur.Type: GrantFiled: June 25, 1997Date of Patent: September 15, 1998Assignee: U.S. Filter/Engineered SystemsInventors: Derek McManus, Arthur E. Martell, Dian Chen
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Patent number: 5792769Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 --R.sup.4, R.sup.7 --R.sup.8, R.sup.a, R.sup.b, R.sup.c, Y, Z, n and m are set forth in the specification, as well as hydrates, solvates or pharmaceutically acceptable salts thereof, that inhibit a number of proteolytic enzymes are described. Also described are methods for preparing the compounds of Formula I.Type: GrantFiled: August 15, 1996Date of Patent: August 11, 1998Assignee: 3-Dimensional Pharmaceuticals, Inc.Inventors: Tianbao Lu, Carl R. Illig, Bruce E. Tomczuk, Richard M. Soll, Nalin L. Subasinghe, Roger F. Bone
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Patent number: 5789592Abstract: A compound in metal-free or metal complex form of formula (1) to (3) in which R is hydrogen or C.sub.1-30 alkyl; X is hydrogen, halogen (preferably Cl or Br) or C.sub.1-30 alkyl.Type: GrantFiled: October 30, 1996Date of Patent: August 4, 1998Assignee: Ecole Polytechnique Federale de LausanneInventors: Michael Gratzel, Oliver Kohle, Mohammad K. Nazeeruddin, Peter Pechy, Francois P. Rotzinger, Stephan Ruile, Shaik Mohammad Zakeeruddin
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Patent number: 5763611Abstract: The present invention relates to thio-substituted cyclic phosphonate compounds including bisphosphonates and phosphonoalkylphosphinates, and the pharmaceutically-acceptable salts and esters thereof. The present invention further relates to pharmaceutical compositions containing a safe and effective amount of a compound of the present invention, and pharmaceutically-acceptable excipients. Finally, the present invention relates to methods for treating or preventing pathological conditions characterized by abnormal calcium and phosphate metabolism in humans or other mammals including treating or preventing osteoporosis and arthritis, especially rheumatoid arthritis and osteoarthritis. The compounds may be monocyclic or bicyclic and have the following general structure: ##STR1## wherein (a) X and Y are independently selected from nil, O, S, and N;(b) R is PO.sub.3 H.sub.2 or P(O)(OH)R.sup.4, wherein R.sup.4 is substituted or unsubstituted C.sub.1 -C.sub.Type: GrantFiled: April 30, 1993Date of Patent: June 9, 1998Assignee: The Procter & Gamble CompanyInventors: Susan Mary Kaas, Frank Hallock Ebetino, Marion David Francis