Patents Assigned to Guilford Pharmaceutical Inc.
  • Patent number: 6265609
    Abstract: The present invention relate to thio-substituted pentanedioic acid derivatives that inhibit N-Acetylated &agr;-Linked Acidic Dipeptidase (NAALADase) enzyme activity, pharmaceutical compositions comprising the same, and methods of using the same to inhibit NAALADase enzyme activity, to effect neuronal activities, to inhibit angiogenesis, and to treat glutamate abnormalities, compulsive disorders and prostate diseases.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: July 24, 2001
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Paul F. Jackson, Keith M. Maclin, Eric Wang, Barbara S. Slusher, Rena Lapidus
  • Patent number: 6235748
    Abstract: A compound of formula I containing at least one ring nitrogen: or a pharmaceutically acceptable base or acid addition salt, prodrug, metabolite, optical isomer or stereoisomer thereof.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: May 22, 2001
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Jia-He Li, Jie Zhang
  • Patent number: 6228888
    Abstract: The present invention relates to methods of using NAALADase inhibitors for treating glutamate-mediated diseases, disorders and conditions selected from the group consisting of anxiety, anxiety disorders and memory impairment.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: May 8, 2001
    Assignee: Guilford Pharmaceuticals Inc.
    Inventor: Barbara S. Slusher
  • Patent number: 6201020
    Abstract: This invention relates to compounds, pharmaceutical compositions, and methods of using compounds of the formula: A is O or S; R is C1-C10 straight or branched chain alkyl, C2-C10 straight or branched chain alkenyl, C2-C10 straight or branched chain alkynyl, aryl, heteroaryl, carbocycle, or heterocycle; D is a bond, or a C1-C3 straight or branched chain alkyl, C2-C3 straight or branched chain alkenyl, C2-C3 straight or branched chain alkynyl, wherein any of the carbon atoms of said alkyl, alkenyl, or alkynyl of D are optionally replaced with oxygen, nitrogen, or sulfur; and X is aryl, heteroaryl, carbocycle, or heterocycle.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: March 13, 2001
    Assignee: Guilford Pharmaceuticals, Inc.
    Inventors: Jie Zhang, Larisa E. Serdyuk, Jia-He Li
  • Patent number: 6197785
    Abstract: A compound, compositions, methods of use, and processes of making formula I: or a pharmaceutically acceptable salt, hydrate, ester, solvate, prodrug, metabolite, stereoisomer, or mixtures thereof, wherein: R1, when present, is hydrogen or lower alkyl; R2 is lower alkyl, aryl, aralkyl, lower alkanoyl, or —(CH2)n—(CHOH)y(CH2)mA, wherein n is 1-4, y is 0 or 1, m is 0-5, and A is cycloalkyl, cycloalkenyl, lower alkanoyl, aryl, aralkyl, —NH2, —NH—(lower alkyl), Y represents the atoms necessary to form a fused 5- to 6-membered ring that is aromatic or nonaromatic and carbocyclic or heterocyclic; Z is (i) —CHR2CHR3— where R2 and R3 are independently hydrogen, alkyl, aryl or aralkyl; (ii) —R6C═CR3— where R6 and R3 are independently hydrogen, lower alkyl, aryl, aralkyl, chlorine, bromine or —NR7R8, where R7 and R8 are independently hydrogen or lower alkyl, or, R6 and R3, taken together, form a fused 5- to 6-membere
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: March 6, 2001
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Paul F. Jackson, Keith M. Maclin, Jie Zhang
  • Patent number: 6166173
    Abstract: Biodegradable polymers are described comprising the recurring monomeric units shown in formula I or II: wherein X is --O-- or --NR'--, where R' is H or alkyl; L is a branched or straight chain aliphatic group having from 1-20 carbon atoms; M.sub.1 and M.sub.2 are each independently (1) a branched or straight chain aliphatic group having from 1-20 carbon atoms; or (2) a branched or straight chain, oxy-, carboxy- or amino-aliphatic group having from 1-20 carbon atoms; Y is --O--, --S-- or --NR'--, where R' is H or alkyl; R is H, alkyl, alkoxy, aryl, aryloxy, heterocyclic or heterocycloxy; the molar ratio of x:y is about 1; the molar ratio n:(x or y) is between about 200:1 and 1:200; and the molar ratio q:r is between about 1:99 and 99:1; wherein said biodegradable polymer is biocompatible before and upon biodegradat.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: December 26, 2000
    Assignees: Guilford Pharmaceuticals Inc., Johns Hopkins University
    Inventors: Hai-Quan Mao, Kam W. Leong, Zhong Zhao, James P. English
  • Patent number: 6153212
    Abstract: A medical device is described comprising a biodegradable terephthalate copolymer comprising the recurring monomeric units shown in formula I below: ##STR1## wherein R is a divalent organic moiety; R' is an aliphatic, aromatic, or heterocyclic residue; x is .gtoreq.1; and n is 3-7,500, and where the biodegradable terephthalate copolymer is sufficiently pure to be biocompatible and is capable of forming biocompatible residues upon biodegradation. In addition, compositions containing the copolymers and biologically active substances, articles useful for implantation or injection into the body fabricated from the compositions, and methods for controllably releasing biologically active substances using the copolymers, are also described.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: November 28, 2000
    Assignees: Guilford Pharmaceuticals Inc., Johns Hopkins University School of Medicine
    Inventors: Hai-quan Mao, Kam W. Leong, Zhong Zhao, Wenbin Dang, James P. English, David P. Nowotnik
  • Patent number: 6121252
    Abstract: The present invention relate to phosphinic acid derivatives that inhibit N-Acetylated .alpha.-Linked Acidic Dipeptidase (NAALADase) enzyme activity, pharmaceutical compositions comprising the same, and methods of using the same to inhibit NAALADase activity and to treat glutamate abnormalities and prostate diseases.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: September 19, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Paul F. Jackson, Takashi Tsukamoto, Yao-Sen Ko, Barbara S. Slusher
  • Patent number: 6121278
    Abstract: 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: Grant
    Filed: September 1, 1998
    Date of Patent: September 19, 2000
    Assignee: Guilford Pharmaceuticals, Inc.
    Inventors: Paul F. Jackson, Keith M. Maclin, Jie Zhang
  • Patent number: 6071965
    Abstract: The present invention relate to phosphinic alkanoic acid derivatives that inhibit N-Acetylated .alpha.-Linked Acidic Dipeptidase (NAALADase) enzyme activity, pharmaceutical compositions comprising the same, and methods of using the same to inhibit NAALADase activity and to treat glutamate abnormalities and prostate diseases.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: June 6, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Paul F. Jackson, Weixing Li, Keith M. Maclin, Kevin L. Tays, Takashi Tsukamoto, Barbara S. Slusher
  • Patent number: 6054444
    Abstract: The present invention relates to phosphonic acid 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, to treat a glutamate abnormality and to treat a prostate disease in an animal.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: April 25, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Paul F. Jackson, Keith M. Maclin, Kevin L. Tays, Barbara S. Slusher
  • Patent number: 6046180
    Abstract: 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: Grant
    Filed: May 27, 1997
    Date of Patent: April 4, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Paul F. Jackson, Barbara S. Slusher, Kevin L. Tays, Keith M. Maclin
  • Patent number: 6028163
    Abstract: A process for making a high molecular weight poly(phosphoester) comprising the recurring monomeric units: ##STR1## wherein X is --O-- or --NR"--, where R" is H or alkyl; L is a divalent organic moiety, with the proviso that L cannot have the formula ##STR2## R' is H, alkyl, alkoxy, aryl, aryloxy, heterocyclic, or heterocycloxy; and n is from about 25 to 2000,is described. The process comprises the steps of:(a) substantially dissolving p moles of a di-XH compound in a solvent comprising more than 75% toluene at a first temperature between about -75.degree. C. and 60.degree. C. to form a reaction mixture;(b) while maintaining the reaction mixture at the first temperature, adding q moles, where p.apprxeq.q, of a phosphorodihalo compound;(c) gradually increasing said first temperature at a rate of less than about 2.degree. C. per minute as necessary to achieve a second temperature between about 0.degree. C. and 110.degree. C.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: February 22, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventor: Zhong Zhao
  • Patent number: 6028216
    Abstract: The present invention relates to asymmetric syntheses and intermediates for preparing enantiomer-enriched hydroxyphosphinyl derivatives.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: February 22, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Guillermo Morales, Weixing Li, Paul F. Jackson
  • Patent number: 6025345
    Abstract: The present disclosure relates to dipeptidase inhibitors, and more particularly, to novel methods of using phosphonate derivatives, hydroxyphosphinyl derivatives, and phosphoramidate derivatives to inhibit N-Acetylated .alpha.-Linked Acidic Dipeptidase (NAALADase) enzyme 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: Grant
    Filed: July 25, 1997
    Date of Patent: February 15, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Paul F. Jackson, Barbara S. Slusher, Kevin L. Tays, Keith M. Maclin
  • Patent number: 6025344
    Abstract: 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: Grant
    Filed: May 27, 1997
    Date of Patent: February 15, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Paul F. Jackson, Barbara S. Slusher, Kevin L. Tays, Keith M. Maclin
  • Patent number: 6017903
    Abstract: The present invention relates to a method of treating a glutamate abnormality and a method of effecting a neuronal activity in an animal using a NAALADase inhibitor, and a pharmaceutical composition comprising an effective amount of a NAALADase inhibitor for treating a glutamate abnormality and effecting a neuronal activity in an animal.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: January 25, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Barbara S. Slusher, Paul F. Jackson, Kevin L. Tays, Keith M. Maclin
  • Patent number: 6011021
    Abstract: The present disclosure relates to dipeptidase inhibitors, and more particularly, to novel methods of using phosphonate derivatives, hydroxyphosphinyl derivatives, and phosphoramidate derivatives to inhibit N-Acetylated .alpha.-Linked Acidic Dipeptidase (NAALADase) enzyme 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: Grant
    Filed: May 28, 1997
    Date of Patent: January 4, 2000
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Barbara S. Slusher, Paul F. Jackson, Kevin L. Tays, Keith M. Maclin
  • Patent number: 6008318
    Abstract: A process for making a phosphoester polymer comprising the recurring monomeric units of formula I: ##STR1## wherein: X is --O-- or --NR"--, where R" is H or alkyl;L is a divalent organic moiety;R' is H, alkyl, alkoxy, aryl, aryloxy, heterocyclic, or heterocycloxy; andn is between about 25 to 2,000,is described. The process comprises the steps of:(a) polymerizing in the presence of a solvent p moles of a di-XH compound having formula II:H--X--L--X--H IIwherein X and L are as defined above, with q moles, where p.apprxeq.q, of a phosphorodihalo compound to form a polymer of formula I, wherein n is about 12 to 1000, having a first molecular weight Mw.sub.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: December 28, 1999
    Assignees: Guilford Pharmaceuticals Inc., Johns Hopkins University
    Inventors: Zhong Zhao, Hai-quan Mao, Kam W. Leong
  • Patent number: 6004946
    Abstract: 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: Grant
    Filed: July 8, 1997
    Date of Patent: December 21, 1999
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Barbara S. Slusher, Paul F. Jackson