GPR 17 Agonists and Screening Assay
AssigneeRheinische Friedrich-Wilhelms-Universität Bonn
InventorsEvi Kostenis, Andreas Spinrath, Stephanie Hennen, Lucas Peters, Christa E. Muller, Rhalid Akkari, Younis Baqi, Kirsten Ritter
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Abstract
The present invention is related to a method of determining a test compound's ability to modify the biological activity of a GPR17. Said method comprises, among others, the step of contacting the test compound with a GPR17, or a functional GPR17 fragment in the presence of a suitable amount of a GPR17 agonist of formula I.
Claims14
-7. (canceled)
A method of treating, alleviating or preventing of a GPR17 mediated disease, optionally selected from ischemic diseases, stroke or multiple sclerosis, in a patient in need thereof comprising the steps of
- (a) identifying a compound that modulates GPR17 biological activity by
- (i) contacting a compound with a GPR17, or a functional GPR17 fragment in the presence of a suitable amount of a GPR17 agonist of formula I
- or a salt thereof,
- (ii) measuring the biological activity of said GPR17 or said functional GPR17 fragment after addition of said compound, and
- (iii) comparing the biological activity measured in step (ii) with the biological activity of said GPR17 or said functional fragment thereof in the presence of said GPR 17 agonist of formula I without the addition of said compound to identify whether the compound is one that modulates GPR17 activity,
- wherein in formula I
- R1 and R2 are independently selected from the group comprising hydrogen, halogen, hydroxy, formyl, oxime, cyano, nitro, amino, NR6R7, carboxy, carbamoyl, (C1-C8)alkyl, (C1-C8) all yloxy, (C1-C8)alkylthio, (C2-C8)alkenyl, (C2-C8)alkynyl, (C3-C8)cycloalkyl, (C3-C8)cycloalkloxy, (C3-C8)cycloalkylamino, aryl, heteroaryl, aryloxy, heteroaryloxy, halogen, trifluoromethyl, (C1-C8)alkylcarbonyl, (C1-C8) alkylaminocarbonyl, di(C1-C8)alkylaminocarbonyl, arylcarbonyl, heteroarylcarbonyl, aryl(C1-C8)alkyl, heteroaryl(C1-C8)alkyl, aryl(C1-C8)alkyloxy, heteroaryl(C1-C8)alkyloxy, aryl(C1-C8)alkylcarbonyl, heteroaryl(C1-C8)alkylcarbonyl, aryl(C1-C8)alkyloxycarbonyl, heteroaryl(C1-C8)alkyloxycarbonyl, (C1-C8)alkyloxycarbonyl, (C1-C8)alkylsulfonyl, arylsulfonyl, heteroarylsulfonyl, sulfamoyl, sulfonylamino, (C1-C8)alkylaminosulfonyl, di(C1-C8)alkylaminosulfonyl, arylsulfonylamino, heteroarylsulfonylamino and (C1-C8)alkylsulfonylamino;
- wherein each alkyl, alkenyl alkynyl or cycloalkyl may be unsubstituted or substituted with one or more residues selected from among hydroxyl, (C1-C5)alkyloxy, (C1-C3)alkyloxy(C1-C3)alkyloxy, halogen, and NR6R7;
- and wherein each aryl or heteroaryl can be unsubstituted or substituted with one or more residues selected from among hydroxyl, (C1-C5)alkyloxy, halogen, (C1-C5)alkyl, (C3-C8)cycloalkyl, carboxy, NR6R7, cyano, trifluormethyl and nitro;
- R3 is selected from hydrogen, a group —(CH2)mCH2—COOH, OH, NH, and (C1-C5)alkyl which is optionally substituted with one or more halogens, one or two hydroxyl groups or (C1-C3)alkoxy;
- R4 is selected from hydrogen and fluoro;
- R5 is selected from hydrogen, halogen, (C1-C3)alkyl, (C1-C3)alkyloxy, (C1-C3)alkylthio, (C2-C4)alkenvl, (C2-C4)alkynyl, and NR6R7;
- R6 and R7 are independently selected from hydrogen, (C1-C6)alkyl, (C3-C7)cycloalkyl, phenyl, heteroaryl, phenyl(C1-C6)alkyl, heteroaryl(C1-C6)alkyl, (C1-C6)alkylsulfonyl, phenylsulfonyl, heteroarylsulfonyl, (C1-C6)alkylcarbonyl, (C1-C6)alkoxycarbonyl, aminocarbonyl, (C1-C6)alkylaminocarbonyl, phenylcarbonyl, and heteroarylcarbonyl;
- wherein each alkyl may be unsubstituted or substituted with one or more residues selected from among hydroxyl, (C1-C3)alkyloxy, phenyl, halo, carboxy, and NR8R9;
- and wherein R6 and R7 may form a 5- to 7-membered cycle;
- and wherein phenyl or heteroaryl can be unsubstituted or substituted with one or more residues selected from among hydroxyl, (C1-C3)alkyloxy, halogen, (C1-C3)alkyl, carboxy, NR8R9, cyano, trifluormethyl and nitro;
- R8 and R9 are independently selected from among hydrogen and (C1-C3)alkyl;
- n and m are independently 0, 1 or 2;
- and
- (b) administering said GPR17 modulating compound to the patient, optionally together with one or more pharmaceutically acceptable excipients.
A screening assay for the identification of GPR 17 modulators among a multitude of compounds, said screening assay comprising
- (a) cells or membrane fractions expressing GPR17 or a functional GPR17 fragment and
- (b) a suitable amount of a GPR17 agonist of formula I
- wherein in formula I
- R1 and R2 are independently selected from the group comprising hydrogen, halogen, hydroxy, formyl, oxime, cyano, nitro, amino, NR6R7, carboxy, carbamoyl, (C1-C8)alkyl, (C1-C8) alkyloxy, (C1-C8)alkylthio, (C2-C8)alkenyl, (C2-C8)alkynyl, (C3-C8)cycloalkyl, (C3-C8)cycloalkyloxy, (C3-C8)cycloalkylamino, aryl, heteroaryl, aryloxy, heteroaryloxy, halogen, trifluoromethyl, (C1-C8)alkylcarbonyl, (C1-C8) alkylaminocarbonyl, di(C1-C8)alkylaminocarbonyl, arylcarbonyl, heteroarylcarbonyl, aryl(C1-C8)alkyl, heteroaryl(C1-C8)alkyl, aryl(C1-C8)alkyloxy, heteroaryl(C1-C8)alkyloxy, aryl(C1-C8)alkylcarbonyl, heteroaryl(C1-C8)alkylcarbonyl, aryl(C1-C8)alkyloxycarbonyl, heteroaryl(C1-C8)alkyloxycarbonyl, (C1-C8)alkyloxycarbonyl, (C1-C8)alkylsulfonyl, arylsulfonyl, heteroarylsulfonyl, sulfamoyl, sulfonylamino, (C1-C8)alkylaminosulfonyl, di(C1-C8)alkylaminosulfonyl, arylsulfonylamino, heteroarylsulfonylamino and (C1-C8)alkylsulfonylamino;
- wherein each alkyl, alkenyl, alkynyl or cycloalkyl may be unsubstituted or substituted with one or more residues selected from among hydroxyl, (C1-C5)alkyloxy, (C1-C3)alkyloxy(C1-C3)alkyloxy, halogen, and NR6R7;
- and wherein each aryl or heteroaryl can be unsubstituted or substituted with one or more residues selected from among hydroxyl, (C1-C5)alkyloxy, halogen, (C1-C5)alkyl, (C3-C8)cycloalkyl, carboxy, NR6R7, cyano, trifluormethyl and nitro;
- R3 is selected from hydrogen, a group —(CH2)mCH2—COOH, OH, NH, and (C1-C5)alkyl which is optionally substituted with one or more halogens, one or two hydroxyl groups or methoxy;
- R4 is independently selected from hydrogen and fluoro;
- R5 is selected from hydrogen, halogen, (C1-C3)alkyl, (C1-C3)alkyloxy, (C1-C3)alkylthio, (C2-C4)alkenyl, (C2-C4)alkynyl, and NR6R7;
- R6 and R7 are independently selected from hydrogen,(C1-C6)alkyl, (C3-C7)cycloalkyl, phenyl, heteroaryl, phenyl(C1-C6)alkyl, heteroaryl(C1-C6)alkyl, (C1-C6)alkylsulfonyl, phenylsulfonyl, heteroarylsulfonyl,(C1-C6)alkylcarbonyl,(C1-C6)alkoxycarbonyl, aminocarbonyl, (C1-C6)alkylaminocarbonyl, phenylcarbonyl, and heteroarylcarbonyl;
- wherein each alkyl may be unsubstituted or substituted with one or more residues selected from among hydroxyl, (C1-C3)alkyloxy, phenyl, halo, carboxy, and NR8R9;
- and wherein R6 and R7 may form a 5- to 7-membered cycle;
- and wherein phenyl or heteroaryl can be unsubstituted or substituted with one or more residues selected from among hydroxyl, (C1-C3)alkyloxy, halogen, (C1-C3)alkyl, carboxy, NR8R9, cyano, trifluormethyl and nitro;
- R8 and R9 are independently selected from among hydrogen and (C1-C3)alkyl;
- n and m are independently 0, 1 or 2, or
- a salt thereof,
- and wherein, optionally, the GPR agonist of formula I is as defined in claim 2.
(canceled)
A compound selected from
- 3-(2-carboxyethyl)-4,6-dibromo-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-4,6-dichloro-(1-carboxyethyl)-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-bromo-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-iodo-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-4,6-diiodo-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-4,6-diphenyl-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-phenyl-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6,7-dichloro-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-chloro-7-fluoro-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-bromo-2-carboxy-7-fluoro-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-benzyl-2-carboxy-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-4,6-dihydroxy-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl-6-(4-fluorophenyl)-1H-indol-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-furanyl-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-thienyl-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-7-fluoro-6-phenyl-1H-indole-2-carboxylic acid,
- 3-(2-carboxyethyl)-6-(4-fluorophenyl)-7-fluoro-1H-indol-2-carboxylic acid,
- 3 -(2-carboxyethyl)-6-furanyl-7-fluoro-1H-indole-2-carboxylic acid,
- 3 -(2-carboxyethyl)-6-thienyl-7-fluoro-1H-indole-2-carboxylic acid,
- and salts of any of the foregoing.
Dependencies are inferred from the claim text.