Patents by Inventor George Kokotos

George Kokotos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11691959
    Abstract: A compound of formula (I) wherein X is 0, C=0 or S; Y is N or CH; R2 and R4 are each independently H, —(CH2)pCOOH, —(CH2)pCON(R5)2 or —(CH2)pCOOC1-6alkyl; or R2 and R4 together form a 6-membered phenyl ring fused to the five membered ring; each R1 is independently selected from H, halo (e.g. fluoro or chloro), C6-10aryl, C7-12arylalkyl, C2-12 alkenyl; OC1-12 alkyl, OC2-12 alkenyl or a C1-12 alkyl group; each R5 is H or C1-6 alkyl; each p is 0 to 3; n is 1 to 4; or a salt, ester, solvate, N-oxide, or prodrug thereof, e.g. a salt thereof.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: July 4, 2023
    Assignee: Avexxin AS
    Inventors: Berit Johansen, Marcel Sandberg, Inger-Reidun Aukrust, George Kokotos, Efrosini Barbayianni
  • Publication number: 20220363659
    Abstract: A compound of formula (I) wherein X is O, C?O or S; Y is N or CH; R2 and R4 are each independently H, —(CH2)pCOOH, —(CH2)pCON(R5)2 or —(CH2)pCOOC1-6alkyl; or R2 and R4 together form a 6-membered phenyl ring fused to the five membered ring; each R1 is independently selected from H, halo (e.g. fluoro or chloro), C6-10 aryl, C7-12arylalkyl, C2-12 alkenyl; OC1-12 alkyl, OC2-12 alkenyl or a C1-12 alkyl group; each R5 is H or C1-6 alkyl; each p is 0 to 3; n is 1 to 4; or a salt, ester, solvate, N-oxide, or prodrug thereof, e.g.
    Type: Application
    Filed: June 10, 2021
    Publication date: November 17, 2022
    Inventors: Berit Johansen, Marcel Sandberg, Inger-Reidun Aukrust, George Kokotos, Efrosini Barbayianni
  • Patent number: 11034666
    Abstract: A compound of formula (I) wherein X is O, C?O or S; Y is N or CH; R2 and R4 are each independently H, —(CH2)pCOOH, —(CH2)pCON(R5)2 or —(CH2)pCOOC1-6alkyl; or R2 and R4 together form a 6-membered phenyl ring fused to the five membered ring; each R1 is independently selected from H, halo (e.g. fluoro or chloro), C6-10aryl, C7-12arylalkyl, C2-12 alkenyl; OC1-12 alkyl, OC2-12 alkenyl or a C1-12 alkyl group; each R5 is H or C1-6 alkyl; each p is 0 to 3; n is 1 to 4; or a salt, ester, solvate, N-oxide, or prodrug thereof, e.g. a salt thereof.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: June 15, 2021
    Assignee: Avexxin AS
    Inventors: Berit Johansen, Marcel Sandberg, Inger-Reidun Aukrust, George Kokotos, Efrosini Barbayianni
  • Publication number: 20210101913
    Abstract: A compound of formula (I?) wherein R6 is H, C1-6alkyl, —(CH2)pCOOH, —(CH2)pCOOC1-6alkyl, —(CH2)pCONH2, —(CH2)pCONHC1-6alkyl, —(CH2)pCON(C1-6alkyl)2, R7 is as defined for R6; or and R7 taken together with the atoms joining them can form a 6-membered aromatic or non aromatic, saturated or unsaturated, carbocyclic or heteroatom containing (e.g.
    Type: Application
    Filed: October 21, 2020
    Publication date: April 8, 2021
    Inventors: Berit Johansen, Marcel Sandberg, Inger-Reidun Aukrust, George Kokotos, Johan Evenäs, Thomas Brimert, Kildahl-Andersen Geir
  • Patent number: 10851114
    Abstract: A compound of formula (I?) wherein R6 is H, C1-6alkyl, —(CH2)pCOOH, —(CH2)pCOOC1-6alkyl, —(CH2)pCONH2, —(CH2)pCONHC1-6alkyl, —(CH2)pCON(C1-6alkyl)2, R7 is as defined for R6; or and R7 taken together with the atoms joining them can form a 6-membered aromatic or non aromatic, saturated or unsaturated, carbocyclic or heteroatom containing (e.g.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: December 1, 2020
    Assignee: Avexxin AS
    Inventors: Berit Johansen, Marcel Sandberg, Inger-Reidun Aukrust, George Kokotos, Johan Evenäs, Thomas Brimert, Kildahl-Andersen Geir
  • Publication number: 20200299256
    Abstract: A compound of formula (I) wherein X is O, C?O or S; Y is N or CH; R2 and R4 are each independently H, —(CH2)pCOOH, —(CH2)pCON(R5)2 or —(CH2)pCOOC1-6alkyl; or R2 and R4 together form a 6-membered phenyl ring fused to the five membered ring; each R1 is independently selected from H, halo (e.g. fluoro or chloro), C6-10aryl, C7-12arylalkyl, C2-12 alkenyl; OC1-12 alkyl, OC2-12 alkenyl or a C1-12 alkyl group; each R5 is H or C1-6 alkyl; each p is 0 to 3; n is 1 to 4; or a salt, ester, solvate, N-oxide, or prodrug thereof, e.g.
    Type: Application
    Filed: October 25, 2019
    Publication date: September 24, 2020
    Inventors: Berit Johansen, Marcel Sandberg, Inger-Reidun Aukrust, George Kokotos, Efrosini Barbayianni
  • Publication number: 20190345168
    Abstract: A compound of formula (I?) wherein R6 is H, C1-6alkyl, —(CH2)pCOOH, —(CH2)pCOOC1-6alkyl, —(CH2)pCONH2, —(CH2)pCONHC1-6alkyl, —(CH2)pCON(C1-6alkyl)2, R7 is us defined for R6; or and R7 taken together with the atoms joining them can form a 6-membered aromatic or non aromatic, saturated or unsaturated, carbocyclic or heteroatom containing (e.g.
    Type: Application
    Filed: December 10, 2018
    Publication date: November 14, 2019
    Inventors: Berit Johansen, Marcel Sandberg, Inger-Reidun Aukrust, George Kokotos, Johan Evenäs, Thomas Brimert, Kildahl-Andersen Geir
  • Patent number: 10370344
    Abstract: The invention provides compounds of formula (I) wherein X is O or S; R1 is H, OH, SH, nitro, NH2, NHC1-6alkyl, N(C1-6alkyl)2, halo, haloC1-6alkyl, CN, C1-6-alkyl, OC1-6alkyl, C1-6alkylCOOH, C1-6alkylCOOC1-6alkyl, C2-6-alkenyl, C3-10cycloalkyl, C6-10aryl, C1-6alkylC6-10aryl, heterocyclyl, heteroaryl, CONH2, CONHC1-6alkyl, CON(C1-6alkyl)2, OCOC1-6alkyl, or is an acidic group, such as a group comprising a carboxyl, phosphate, phosphinate, sulfate, sulfonate, or tetrazolyl group; R2 is as defined for R1 or R1 and R2 taken together can form a 6-membered aromatic ring optionally substituted by up to 4 groups R5; R3 is H, halo (preferably fluoro), or CHal3 (preferably CF3); each R5 is defined as for R1; V1 is a covalent bond, —O—, or a C1-20alkyl group, or C2-20-mono or multiply unsaturated alkenyl group; said alkyl or alkenyl groups being optionally interrupted by one or more heteroatoms selected from O, NH, N(C1-6 alkyl), S, SO, or SO2; M1 is absent or is a C5-10 cyclic group or a C5-15 aromatic group; and R
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: August 6, 2019
    Assignee: Avexxin AS
    Inventors: George Kokotos, Berit Johansen, Victoria Magrioti, Michael Tsakos
  • Patent number: 10259801
    Abstract: A compound of formula (I) wherein X is O, C?O or S; Y is N or CH; R2 and R4 are each independently H, —(CH2)pCOOH, —(CH2)pCON(R5)2 or —(CH2)pCOOC1-6alkyl; or R2 and R4 together form a 6-membered phenyl ring fused to the five membered ring; each R1 is independently selected from H, halo (e.g. fluoro or chloro), C6-10aryl, C7-12arylalkyl, C2-12 alkenyl; OC1-12 alkyl, OC2-12 alkenyl or a C1-12 alkyl group; each R5 is H or C1-6 alkyl; each p is 0 to 3; n is 1 to 4; or a salt, ester, solvate, N-oxide, or prodrug thereof, e.g. a salt thereof.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: April 16, 2019
    Assignee: Avexxin AS
    Inventors: Berit Johansen, Marcel Sanderberg, Inger-Reidun Aukrust, George Kokotos, Efrosini Barbayianni
  • Patent number: 10150781
    Abstract: A compound of formula (I?) wherein R6 is H, C1-6alkyl, —(CH2)pCOOH, —(CH2)pCOOC1-6alkyl, —(CH2)pCONH2, —(CH2)pCONHC1-6alkyl, —(CH2)pCON(C1-6alkyl)2, R7 is as defined for R6; or R6 and R7 taken together with the atoms joining them can form a 6-membered aromatic or non aromatic, saturated or unsaturated, carbocyclic or heteroatom containing (e.g.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: December 11, 2018
    Assignee: Avexxin AS
    Inventors: Berit Johansen, Marcel Sanderberg, Inger-Reidun Aukrust, George Kokotos, Johan Evenäs, Thomas Brimert, Kildahl-Andersen Geir
  • Publication number: 20180141965
    Abstract: Novel inhibitors of the enzyme autotaxin are described. The inhibitors contain one or two zinc-binding groups at the appropriate distance, Also described are uses thereof, such as for the inhibition of autotaxin activity and the treatment of various conditions (e.g., inflammatory conditions, cancer, obesity, autoimmune diseases).
    Type: Application
    Filed: May 18, 2016
    Publication date: May 24, 2018
    Applicant: NATIONAL AND KAPODISTRIAN UNIVERSITY OF ATHENS
    Inventor: GEORGE KOKOTOS
  • Publication number: 20180105507
    Abstract: A compound of formula (I) wherein X is O, C?O or S; Y is N or CH; R2 and R4 are each independently H, —(CH2)pCOOH, —(CH2)pCON(R5)2 or —(CH2)pCOOC1-6alkyl; or R2 and R4 together form a 6-membered phenyl ring fused to the five membered ring; each R1 is independently selected from H, halo (e.g. fluoro or chloro), C6-10aryl, C7-12arylalkyl, C2-12 alkenyl; OC1-12 alkyl, OC2-12 alkenyl or a C1-12 alkyl group; each R5 is H or C1-6 alkyl; each p is 0 to 3; n is 1 to 4; or a salt, ester, solvate, N-oxide, or prodrug thereof, e.g.
    Type: Application
    Filed: October 20, 2017
    Publication date: April 19, 2018
    Inventors: Berit Johansen, Marcel Sanderberg, Inger-Reidun Aukrust, George Kokotos, Efrosini Barbayianni
  • Publication number: 20170166539
    Abstract: The invention provides compounds of formula (I) wherein X is O or S; R1 is H, OH, SH, nitro, NH2, NHC1-6alkyl, N(C1-6alkyl)2, halo, haloC1-6alkyl, CN, C1-6-alkyl, OC1-6alkyl, C1-6alkylCOOH, C1-6alkylCOOC1-6alkyl, C2-6-alkenyl, C3-10cycloalkyl, C6-10aryl, C1-6alkylC6-10aryl, heterocyclyl, heteroaryl, CONH2, CONHC1-6alkyl, CON(C1-6alkyl)2, OCOC1-6alkyl, or is an acidic group, such as a group comprising a carboxyl, phosphate, phosphinate, sulfate, sulfonate, or tetrazolyl group; R2 is as defined for R1 or R1 and R2 taken together can form a 6-membered aromatic ring optionally substituted by up to 4 groups R5; R3 is H, halo (preferably fluoro), or CHal3 (preferably CF3); each R5 is defined as for R1; V1 is a covalent bond or a C1-20alkyl group, or C2-20-mono or multiply unsaturated alkenyl group; said alkyl or alkenyl groups being optionally interupted by one or more heteroatoms selected from O, NH, N(C1-6 alkyl), S, SO, or SO2; M1 is absent or is a C5-10 cyclic group or a C5-15 aromatic group; and R4 is H,
    Type: Application
    Filed: February 24, 2017
    Publication date: June 15, 2017
    Inventors: George Kokotos, Berit Johansen, Victoria Magrioti, Michael Tsakos
  • Publication number: 20170166589
    Abstract: A compound of formula (I?) wherein R6 is H, C1-6alkyl, —(CH2)pCOOH, —(CH2)pCOOC1-6alkyl, —(CH2)pCONH2, —(CH2)pCONHC1-6alkyl, —(CH2)pCON(C1-6alkyl)2, R7 is as defined for R6; or R6 and R7 taken together with the atoms joining them can form a 6-membered aromatic or non aromatic, saturated or unsaturated, carbocyclic or heteroatom containing (e.g.
    Type: Application
    Filed: August 3, 2015
    Publication date: June 15, 2017
    Inventors: Berit Johansen, Marcel Sanderberg, Inger-Reidun Aukrust, George Kokotos, Johan Evenäs, Thomas Brimert, Kildahl-Andersen Geir
  • Patent number: 9597318
    Abstract: The invention provides compounds of formula (I) wherein X is O or S; R1 is H, OH, SH, nitro, NH2, NHC1-6alkyl, N(C1-6alkyl)2, halo, haloC1-6alkyl, CN, C1-6-alkyl, OC1-6alkyl, C1-6alkylCOOH, C1-6alkylCOOC1-6alkyl, C2-6-alkenyl, C3-10cycloalkyl, C6-10aryl, C1-6alkylC6-10aryl, heterocyclyl, heteroaryl, CONH2, CONHC1-6alkyl, CON(C1-6alkyl)2, OCOC1-6alkyl, or is an acidic group, such as a group comprising a carboxyl, phosphate, phosphinate, sulfate, sulfonate, or tetrazolyl group; R2 is as defined for R1 or R1 and R2 taken together can form a 6-membered aromatic ring optionally substituted by up to 4 groups R5; R3 is H, halo (preferably fluoro), or CHal3 (preferably CF3); each R5 is defined as for R1; V1 is a covalent bond, —O—, or a C1-20alkyl group, or C2-20-mono or multiply unsaturated alkenyl group; said alkyl or alkenyl groups being optionally interrupted by one or more heteroatoms selected from O, NH, N(C1-6 alkyl), S, SO, or SO2; M1 is absent or is a C5-10 cyclic group or a C5-15 aromatic group; and R
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: March 21, 2017
    Assignee: Avexxin AS
    Inventors: George Kokotos, Berit Johansen, Victoria Magrioti, Michael Tsakos
  • Publication number: 20150376161
    Abstract: A compound of formula (I) wherein X is O, C?O or S; Y is N or CH; R2 and R4 are each independently H, —(CH2)pCOOH, —(CH2)pCON(R5)2 or —(CH2)pCOOC1-6alkyl; or R2 and R4 together form a 6-membered phenyl ring fused to the five membered ring; each R1 is independently selected from H, halo (e.g. fluoro or chloro), C6-10aryl, C7-12arylalkyl, C2-12 alkenyl; OC1-12 alkyl, OC2-12 alkenyl or a C1-12 alkyl group; each R5 is H or C1-6 alkyl; each p is 0 to 3; n is 1 to 4; or a salt, ester, solvate, N-oxide, or prodrug thereof, e.g.
    Type: Application
    Filed: January 28, 2014
    Publication date: December 31, 2015
    Inventors: Berit Johansen, Marcel Sanderberg, Inger-Reidun Aukrust, George Kokotos, Efrosini Barbayianni
  • Patent number: 8759392
    Abstract: Methods and compounds useful for inhibiting a phoshpolipase A2 are provided, the methods comprising contacting the phoshpolipase A2 with a compound having the structure A, or pharmaceutically acceptable salts thereof: wherein R1 is H, F, NH2, or COOH; R2 is, H, linear saturated or unsaturated alkyl, alkenyl, or alkynyl; each of R3 and R4 is independently H, linear saturated or unsaturated alkyl, alkenyl, alkynyl, phenyl, or substituted phenyl; R5 is H, (C1-C6) alkyl such as methyl or ethyl; X is aryl or substituted aryl, such as phenyl or a substituted phenyl; and Y is O or S.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: June 24, 2014
    Assignee: The Regents of the University of California
    Inventors: Edward A. Dennis, George Kokotos, Violetta Constantinou-Kokotou, Samuel David
  • Patent number: 8580852
    Abstract: The disclosure provides a series of 2-oxoamides based on dipeptides and pseudodipeptides, which were synthesized and their activities toward two human intracellular phospholipases A2 (GIVA CPLA 2 and GVIA 1PLA 2) and one human secretory phospholipase A2 (GV sPLA 2) were evaluated. Derivatives containing a free carboxyl group are selective GIVA cPLA 2 inhibitors. A derivative based on the ethyl ester of an ether pseudodipeptide is the first 2-oxoamide, which preferentially inhibits GVIA iPLA 2. The effect of 2-oxoamides on the generation of arachidonic acid from RAW 264.7 macrophages was also studied. It was found that selective GIVA cPLA 2 inhibitors preferentially inhibited cellular arachidonic acid release; in which one pseudodipeptide gave an IC50 value of 2 ?M.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: November 12, 2013
    Assignee: The Regents of the University of California
    Inventors: Edward A. Dennis, George Kokotos, Violetta Constantinou-Kokotou
  • Patent number: 8420852
    Abstract: Phospholipase A2 (PLA2) forms are expressed in spinal cord whose inhibition induces a potent antihyperalgesia. PLA2 inhibitor compounds are provided that include a common motif consisting of a 2-oxoamide with a hydrocarbon tail and a four carbon tether. The compounds block Group IVA calcium dependent PLA2 (cPLA2) and/or Group VIA calcium independent PLA2 (iPLA2) and/or Group V secreted PLA2 (sPLA2). Pharmaceutical compositions of compounds having cPLA2 inhibitory activity (but not iPLA2 or sPLA2 inhibitory activity) are useful in treating multiple sclerosis, while compositions of compounds having sPLA2 inhibitory activity (as well as iPLA2 and CPLA2 activity) are useful in treating spinal cord injuries (with related functional recovery).
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: April 16, 2013
    Assignee: The Regents of the University of California
    Inventors: Edward A. Dennis, Daren Stephens, Samuel David, Ruben Lopez-Vales, Athena Kalyvas, George Kokotos, Violetta Constantinou-Kokotou, Efrosini Barbayianni, Victoria Magrioti
  • Publication number: 20120095096
    Abstract: The disclosure provides a series of 2-oxoamides based on dipeptides and pseudodipeptides, which were synthesized and their activities toward two human intracellular phospholipases A2 (GIVA CPLA2 and GVIA 1PLA2) and one human secretory phospholipase A2 (GVsPLA2) were evaluated. Derivatives containing a free carboxyl group are selective GIVA cPLA2 inhibitors. A derivative based on the ethyl ester of an ether pseudodipeptide is the first 2-oxoamide, which preferentially inhibits GVIA iPLA2. The effect of 2-oxoamides on the generation of arachidonic acid from RAW 264.7 macrophages was also studied. It was found that selective GIVA cPLA2 inhibitors preferentially inhibited cellular arachidonic acid release; in which one pseudodipeptide gave an IC50 value of 2 ?M.
    Type: Application
    Filed: April 19, 2010
    Publication date: April 19, 2012
    Applicant: The Regents of the University of California
    Inventors: Edward A. Dennis, George Kokotos, Violetta Constantinou-Kokotou