Heterocyclic compounds and their use as glycogen synthase kinase-3 inhibitors

1. A heterocyclic compound of the formula (I)

or a stereoisomer, N-oxide, tautomer and/or physiologically tolerated acid addition salt thereof,

or a compound of formula I, wherein at least one of the atoms has been replaced by its stable, non-radioactive isotope, wherein

A is NR B , where R B is hydrogen;

X 1 and X 2 are CR 2 ;

X 3 is selected from the group consisting of CR 3 , CR 4 and N;

X 4 , X 5 and X 6 are independently of each other selected from the group consisting of CR 3 and CR 4 ;

with the proviso that no more than two of X 3 , X 4 , X 5 and X 6 are CR 4 ;

Y 1 , Y 2 , Y 3 and Y 4 are independently of each other selected from the group consisting of CR 4 , CR 5 , and N;

with the proviso that at most one of Y 1 , Y 2 , Y 3 and Y 4 is N and with the proviso that at most one of Y 1 , Y 2 , Y 3 and Y 4 is CR 4 ; and

with the proviso that one of Y 1 , Y 2 , Y 3 and Y 4 is CR 4 or C—CF 3 if none of X 3 , X 4 , X 5 and X 6 is CR 4 ;

R 1 is hydrogen;

each R 2 is independently selected from the group consisting of hydrogen, OH, halogen, CN, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, and NR a R b ; or two radicals R 2 bonded at the carbon atoms of groups X 1 and X 2 , together with the carbon atoms to which they are bonded, form a 5- or 6-membered saturated or unsaturated ring which may contain 1 or 2 heteroatoms as ring members selected from the group consisting of N, O, and S and which optionally carries 1, 2, or 3 substituents R 6 ;

each R 3 is independently selected from the group consisting of hydrogen, CN, NR a R b , OH, halogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 7 -cycloalkyl, C 3 -C 7 -halocycloalkyl, C 2 -C 4 -alkenyl, C 2 -C 4 -haloalkenyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, formyl, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 1 -C 6 -alkyl-NR a R b , and an aromatic radical Ar, which is selected from the group consisting of phenyl and a 5- or 6-membered N- or C-bound heteroaromatic radical comprising one nitrogen atom and optionally 1, 2, or 3 further heteroatoms independently selected from the group consisting of O, S, and N as ring members, wherein Ar is unsubstituted or carries one or two radicals R 7 and wherein Ar may also be bonded via a CH 2 group;

R 4 is a C-bound saturated or partially unsaturated monocyclic 3-, 4-, 5-, 6-, or 7-membered heterocyclic ring containing 1, 2, or 3 heteroatoms or heteroatom-containing groups selected from the group consisting of O, N, S, NO, SO, and SO 2 as ring members, where the heterocyclic ring optionally carries 1, 2, or 3 C- or N-bound substituents R 8 ;

R 5 is selected from the group consisting of hydrogen, CN, NR a R b , OH, halogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 7 -cycloalkyl, C 3 -C 7 -halocycloalkyl, C 2 -C 4 -alkenyl, C 2 -C 4 -haloalkenyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, formyl, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 1 -C 6 -alkyl-NR a R b , and an aromatic radical Ar, which is selected from the group consisting of phenyl and a 5- or 6-membered N- or C-bound heteroaromatic radical comprising one nitrogen atom and optionally 1, 2, or 3 further heteroatoms independently selected from the group consisting of O, S, and N as ring members, wherein Ar is unsubstituted or carries one or two radicals R 7 and wherein Ar may also be bonded via a CH 2 group;

R 6 and R 8 , independently of each other and independently of each occurrence, are selected from the group consisting of CN, NR a R b , OH, halogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 7 -cycloalkyl, C 3 -C 7 -halocycloalkyl, C 2 -C 4 -alkenyl, C 2 -C 4 -haloalkenyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, formyl, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, C 1 -C 6 -alkyl-NR a R b , and an aromatic radical Ar, which is selected from the group consisting of phenyl and a 5- or 6-membered N- or C-bound heteroaromatic radical comprising one nitrogen atom and optionally 1, 2, or 3 further heteroatoms independently selected from the group consisting of O, S, and N as ring members, wherein Ar is unsubstituted or carries one or two radicals R 7 and wherein Ar may also be bonded via a CH 2 group;

each R 7 is independently selected from the group consisting of halogen, CN, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 6 -cycloalkyl, C 3 -C 6 -halocycloalkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, NR a R b , a phenyl group, and a 5- or 6-membered heteroaromatic radical comprising one nitrogen atom and optionally 1, 2 or 3 further heteroatoms independently selected from the group consisting of O, S, and N as ring members, wherein phenyl and the heteroaromatic radical are, independently of each other, unsubstituted or substituted by 1, 2, 3, or 4 radicals selected from the group consisting of halogen, cyano, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy, and C 1 -C 4 -haloalkoxy; and

R a and R b are independently of each other selected from the group consisting of hydrogen, C 1 -C 6 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 1 -C 4 -alkylcarbonyl, and C 1 -C 4 -haloalkylcarbonyl;

or R a and R b form, together with the nitrogen atom to which they are bonded, a 3-, 4-, 5-, 6-, or 7-membered saturated or unsaturated aromatic or non-aromatic N-heterocyclic ring, which may contain 1 further heteroatom or heteroatom containing group selected from the group consisting of O, S, SO, SO, and N as a ring member.

2. The heterocyclic compound of claim 1 , wherein either one of X 3 , X 4 , X 5 , and X 6 is CR 4 and none of Y 1 , Y 2 , Y 3 , and Y 4 is CR 4 , or one of Y 1 , Y 2 , Y 3 and Y 4 is CR 4 and none of X 3 , X 4 , X 5 , and X 6 is CR 4 .

3. The heterocyclic compound of claim 1 , wherein one of Y 1 , Y 2 , Y 3 , and Y 4 is CR 4 if none of X 3 , X 4 , X 5 , and X 6 is CR 4 .

4. The heterocyclic compound of claim 1 , wherein one of Y 1 , Y 2 , Y 3 , and Y 4 is C—CF 3 if none of X 3 , X 4 , X 5 , and X 6 is CR 4 .

5. The heterocyclic compound of claim 1 , wherein R 4 is selected from a C-bound saturated or partially unsaturated monocyclic 4-, 5-, or 6-membered heterocyclic ring containing 1 or 2 or 3 heteroatoms selected from the group consisting of O, N, S, and SO, as ring members, where the heterocyclic ring optionally carries 1, 2, or 3 substituents R 8 .

6. The heterocyclic compound of claim 5 , wherein R 4 is selected from the group consisting of C-bound oxetanyl, thietanyl, azetidinyl, tetrahydrofuranyl, tetrahydrothienyl, tetrahydrothienyl-1-oxide, pyrrolidinyl, pyrrolinyl, pyrazolidinyl, pyrazolinyl, imidazolidinyl, imidazolinyl, tetrahydropyranyl, dihydropyranyl, piperidinyl, tetrahydropyridinyl, dihydropyridinyl, piperazinyl, and morpholinyl, where the heterocyclic ring optionally carries 1, 2, or 3 substituents R 8 .

7. The heterocyclic compound of claim 6 , wherein R 4 is selected from the group consisting of C-bound oxetanyl, azetidinyl, tetrahydrofuranyl, tetrahydrothienyl, tetrahydrothienyl-1-oxide, pyrrolidinyl, pyrrolinyl, tetrahydropyranyl, dihydropyranyl, piperidinyl, tetrahydropyridinyl, dihydropyridinyl, piperazinyl, and morpholinyl, where the heterocyclic ring optionally carries 1, 2, or 3 substituents R 8 .

8. The heterocyclic compound of claim 7 , wherein R 4 is selected from the group consisting of azetidin-3-yl, tetrahydrofuran-3-yl, pyrrolidin-3-yl, pyrrolin-3-yl, tetrahydropyran-4-yl, tetrahydropyran-3-yl, dihydropyran-4-yl, dihydropyran-3-yl, piperidin-4-yl, 1,2,5,6-tetrahydropyridin-4-yl, and 1,2-dihydropyridin-4-yl, where the heterocyclic ring optionally carries 1, 2, or 3 substituents R 8 .

9. The heterocyclic compound of claim 1 , wherein R 8 is selected from the group consisting of C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 7 -cycloalkyl, C 3 -C 7 -halocycloalkyl, C 2 -C 4 -alkenyl, C 2 -C 4 -haloalkenyl, C 1 -C 6 -alkoxy, C 1 -C 6 -haloalkoxy, formyl, C 1 -C 6 -alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 -alkoxycarbonyl, C 1 -C 6 -haloalkoxycarbonyl, and benzyl.

10. The heterocyclic compound of claim 1 , wherein R 8 is N-bound.

11. The heterocyclic compound of claim 1 , wherein R 4 is a structure selected from the group consisting of:

where

R 8a is hydrogen or has one of the meanings given in claim 1 for R 8 ; and

# is the attachment point to the remainder of the molecule.

12. The heterocyclic compound of claim 1 , wherein X 1 and X 2 are CR 2 and X 3 , X 4 , X 5 , and X 6 are CR 3 or CR 4 , or wherein X 1 and X 2 are CR 2 , X 3 is N and X 4 , X 5 , and X 6 are CR 3 or CR 4 .

13. The heterocyclic compound of claim 1 , wherein Y 1 , Y 2 , Y 3 , and Y 4 are CR 4 or CR 5 ,or wherein Y 2 is N and Y 3 and Y 4 are CR 4 or CR 5 .

14. The heterocyclic compound of claim 1 , wherein R 2 is hydrogen.

15. The heterocyclic compound of claim 1 , wherein R 3 is selected from the group consisting of hydrogen, CN, halogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 3 -C 7 -cycloalkyl, C 3 -C 7 -halocycloalkyl, C 1 -C 6 alkoxy, C 1 -C 6 haloalkoxy, formyl, C 1 -C 6 alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 alkoxycarbonyl, and C 1 -C 6 haloalkoxycarbonyl.

16. The heterocyclic compound of claim 1 , wherein 0, 1, or 2 of the radicals R 3 are different from hydrogen.

17. The heterocyclic compound of claim 1 , wherein R 5 is selected from the group consisting of hydrogen, CN, halogen, C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 3 -C 7 -cycloalkyl, C 3 -C 7 -halocycloalkyl, C 1 -C 6 alkoxy, C 1 -C 6 haloalkoxy, formyl, C 1 -C 6 alkylcarbonyl, C 1 -C 6 -haloalkylcarbonyl, C 1 -C 6 alkoxycarbonyl and C 1 -C 6 haloalkoxycarbonyl.

18. The heterocyclic compound of claim 1 , wherein at most one of the radicals R 5 is different from hydrogen.

19. The heterocyclic compound of claim 1 , of formula I-1

where

X 3 is N or CH;

Y 2 is N or CH;

R 31 has one of the meanings given in claim 1 for R 3 , except for hydrogen;

R 4 has one of the meanings given in claim 1 ;

R 51 has one of the meanings given in claim 1 for R 5 , except for hydrogen;

a is 0, 1, or 2; and

b, c, and d are independently of each other 0 or 1, with the proviso that one of b and c is 1.

20. The heterocyclic compound of claim 1 , of formula I-2

where

Y 2 is N or CH;

R 31 has one of the meanings given in claim 1 for R 3 , except for hydrogen;

R 4 has one of the meanings given in claim 1 ;

a is 0, 1, or 2; and

b is 0 or 1.

21. The heterocyclic compound of claim 20 , where Y 2 is CH, b is 0 , and a is 0, 1, or 2 , and where R 31 , if present, is selected from the group consisting of halogen, trifluoromethyl, cyano, and methoxy.

22. A heterocyclic compound selected from the group consisting of:

1-(6-(3,6-dihydro-2H-pyran-4-yl)pyridin-2-yl)-3-(8-fluoroquinolin-4-yl)urea;

1-(8-fluoroquinolin-4-yl)-3-(6-(tetrahydro-2H-pyran-4-yl)pyridin-2-yl)urea;

1-(6-(3,4-dihydro-2H-pyran-5-yl)pyridin-2-yl)-3-(8-fluoroquinolin-4-yl)urea;

1-(6-(3,6-dihydro-2H-pyran-4-yl)pyridin-2-yl)-3-(7-methoxyquinolin-4-yl)urea;

1-(6-(3,4-dihydro-2H-pyran-5-yl)quinolin-4-yl)-3-(6-(trifluoromethyl)pyridin-2-yl)-urea;

1-(7-(3,6-dihydro-2H-pyran-4-yl)quinolin-4-yl)-3-(6-(trifluoromethyl)pyridin-2-yl)-urea;

1-(6-(tetrahydro-2H-pyran-4-yl)quinolin-4-yl)-3-(6-(trifluoromethyl)pyridin-2-yl)-urea;

1-(7-methoxyquinolin-4-yl)-3-(6-(tetrahydro-2H-pyran-4-yl)pyridin-2-yl)urea;

1-(7-(tetrahydro-2H-pyran-4-yl)quinolin-4-yl)-3-(6-(trifluoromethyl)pyridin-2-yl)-urea;

1-(6-(tetrahydro-2H-pyran-3-yl)quinolin-4-yl)-3-(6-(trifluoromethyl)pyridin-2-yl)-urea;

1-(7-(3,6-dihydro-2H-pyran-4-yl)quinolin-4-yl)-3-(pyrazin-2-yl)urea;

1-(6-(3,4-dihydro-2H-pyran-5-yl)pyridin-2-yl)-3-(7-methoxyquinolin-4-yl)urea;

1-(7-methoxyquinolin-4-yl)-3-(6-(tetrahydro-2H-pyran-3-yl)pyridin-2-yl)urea;

1-(pyrazin-2-yl)-3-(7-(tetrahydro-2H-pyran-4-yl)quinolin-4-yl)urea;

1-(7-(3,4-dihydro-2H-pyran-5-yl)quinolin-4-yl)-3-(6-(trifluoromethyl)pyridin-2-yl)-urea;

1-(6-bromo-quinolin-4-yl)-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(6-(trifluoromethyl)pyridin-2-yl)-3-quinolin-4-yl-urea;

1-(6,8-difluoroquinolin-4-yl)-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(7-bromoquinolin-4-yl)-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(7-trifluoromethylquinolin-4-yl)-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(7-methoxyquinolin-4-yl)-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(8-trifluoromethylquinolin-4-yl)-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(8-cyanoquinolin-4-yl)-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(8-iodoquinolin-4-yl)-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(8-cyanoquinolin-4-yl)-3-pyrazin-2-yl-urea;

1-(7-methoxyquinolin-4-yl)-3-pyrazin-2-yl-urea;

tert-butyl 4-{4-[3-(6-trifluoromethyl-pyridin-2-yl)-ureido]-quinolin-6-yl}-3,6-dihydro-2H-pyridine-1-carboxylate;

1-[6-(1,2,3,6-tetrahydro-pyridin-4-yl)-quinolin-4-yl]-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-(6-(piperidin-4-yl)quinolin-4-yl)-3-(6-(trifluoromethyl)pyridin-2-yl)urea;

1-[6-(1-methyl-1,2,3,6-tetrahydro-pyridin-4-yl)-quinolin-4-yl]-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-[6-(1-methyl-piperidin-4-yl)-quinolin-4-yl]-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-{6-[1-(2-fluoro-ethyl)-piperidin-4-yl]-quinolin-4-yl}-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-{6-[1-(2,2-difluoro-ethyl)-piperidin-4-yl]-quinolin-4-yl}-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-[6-(3,6-dihydro-2H-pyran-4-yl)-quinolin-4-yl]-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-[6-(3,6-dihydro-2H-pyran-4-yl)-quinolin-4-yl]-3-pyrazin-2-yl-urea;

tert-butyl 4-[4-(3-pyrazin-2-ylureido)quinolin-6-yl]-5,6-dihydropyridine-1(2H)-carboxylate;

1-pyrazin-2-yl-3-[6-(1,2,3,6-tetrahydro-pyridin-4-yl)-quinolin-4-yl]-urea;

1-(6-piperidin-4-yl-quinolin-4-yl)-3-pyrazin-2-yl-urea;

1-{6-[1-(2-fluoro-ethyl)-piperidin-4-yl]-quinolin-4-yl}-3-pyrazin-2-yl-urea;

1-[6-(1-methyl-piperidin-4-yl)-quinolin-4-yl]-3-pyrazin-2-yl-urea;

tert-butyl 4-{4-[3-(6-cyclopropyl-pyrazin-2-yl)-ureido]-quinolin-6-yl}-3,6-dihydro-2H-pyridine-1-carboxylate;

tert-butyl 4-{4-[3-(6-cyclopropyl-pyrazin-2-yl)-ureido]-quinolin-6-yl}-piperidine-1-carboxylate;

1-(6-cyclopropyl-pyrazin-2-yl)-3-(6-piperidin-4-yl-quinolin-4-yl)-urea;

1-(6-cyclopropyl-pyrazin-2-yl)-3-[6-(1-methyl-piperidin-4-yl)-quinolin-4-yl]-urea;

tert-butyl 3-{4-[3-(6-Trifluoromethyl-pyridin-2-yl)-ureido]-quinolin-6-yl}-2,5-dihydropyrrole-1-carboxylate;

1-[6-(2,5-dihydro-1H-pyrrol-3-yl)-quinolin-4-yl]-3-(6-trifluoromethyl-pyridin-2-yl)-urea;

1-[6-(3,6-dihydro-2H-pyran-4-yl)-pyridin-2-yl]-3-(8-fluoro-quinolin-4-yl)-urea;

1-(8-fluoro-quinolin-4-yl)-3-[6-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

1-(8-chloro-6-methyl-quinolin-4-yl)-3-[6-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

1-(6,8-dichloro-quinolin-4-yl)-3-[6-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

1-(6,8-difluoro-quinolin-4-yl)-3-[6-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

1-(8-chloro-quinolin-4-yl)-3-[6-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

1-[1,5]naphthyridin-4-yl-3-[6-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

1-(5,8-difluoro-quinolin-4-yl)-3-[6-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

1-(8-fluoro-6-methoxy-quinolin-4-yl)-3-[6-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

1-[6-(5,6-dihydro-4H-pyran-3-yl)-pyridin-2-yl]-3-(8-fluoro-quinolin-4-yl)-urea;

1-(8-fluoro-quinolin-4-yl)-3-[6-(tetrahydro-pyran-3-yl)-pyridin-2-yl]-urea;

1-[6-(3,6-dihydro-2H-pyran-4-yl)-pyridin-2-yl]-3-[1,5]naphthyridin-4-yl-urea;

tert-butyl-6-[3-(8-fluoro-quinolin-4-yl)-ureido]-3′,6′-dihydro-2′H-[2,4′]bipyridinyl-1′-carboxylate;

1-(8-fluoro-quinolin-4-yl)-3-(1′,2′,3′,6′-tetrahydro-[2,4]bipyridinyl-6-yl)-urea;

tert-butyl-6-[3-(8-fluoro-quinolin-4-yl)-ureido]-3′,4′,5′,6′-tetrahydro-2′H-[2,4′]bipyridinyl-1′-carboxylate;

1-(8-fluoro-quinolin-4-yl)-3-(1′,2′,3′,4′,5′,6′-hexahydro-[2,4′]bipyridinyl-6-yl)-urea;

1-(8-fluoro-quinolin-4-yl)-3-(1′-methyl-1′,2′,3′,4′,5′,6′-hexahydro-[2,4′]bipyridinyl-6-yl)-urea;

1-[1′-(2-fluoro-ethyl)-1′,2′,3′,4′,5′,6′-hexahydro-[2,4′]bipyridinyl-6-yl]-3-(8-fluoroquinolin-4-yl)-urea;

1-[1′-(2,2-difluoro-ethyl)-1′,2′,3′,4′,5′,6′-hexahydro-[2,4′]bipyridinyl-6-yl]-3-(8-fluoroquinolin-4-yl)-urea;

1-(8-fluoro-quinolin-4-yl)-3-(1′-isopropyl-1′,2′,3′,4′,5′,6′-hexahydro-[2,4]bipyridinyl-6-yl)-urea;

1-(8-fluoro-quinolin-4-yl)-3-[5-(tetrahydro-pyran-4-yl)-pyridin-2-yl]-urea;

tert-butyl-3-[4-(3-pyrazin-2-yl-ureido)-quinolin-6-yl]-2,5-dihydro-pyrrole-1-carboxylate;

tert-butyl-3-[4-(3-pyrazin-2-yl-ureido)-quinolin-6-yl]-pyrrolidine-1-carboxylate; and

1-pyrazin-2-yl-3-(6-pyrrolidin-3-yl-quinolin-4-yl)-urea;

or a stereoisomer, N-oxide, tautomer or physiologically tolerated acid addition salt thereof.

23. The heterocyclic compound of claim 1 , wherein at least one of the atoms has been replaced by its stable, non-radioactive isotope.

24. A pharmaceutical composition comprising at least one heterocyclic compound of claim 1 , a stereoisomer, N-oxide, tautomer, and/or physiologically tolerated acid addition salt thereof, and at least one physiologically acceptable carrier and/or auxiliary substance.

25. A heterocyclic compound that is 1-(7-methoxyquinolin-4-yl)-3-(6-(trifluoromethyl)-pyridin-2-yl)urea, or a stereoisomer, N-oxide, tautomer, or physiologically tolerated acid addition salt thereof.

26. A heterocyclic compound that is 1-(8-fluoroquinolin-4-yl)-3-(6-(tetrahydro-2H-pyran-4-yl)pyridin-2-yl)urea, or a stereoisomer, N-oxide, tautomer, or physiologically tolerated acid addition salt thereof.

27. A heterocyclic compound that is 1-[1′-(2-fluoro-ethyl)-1′,2′,3′,4′,5′,6′-hexahydro-[2,4′]bipyridinyl-6-yl]-3-(8-fluoro-quinolin-4-yl)-urea, or a stereoisomer, N-oxide, tautomer, or physiologically tolerated acid addition salt thereof.

28. A heterocyclic compound that is 1-(7-methoxyquinolin-4-yl)-3-(6-(tetrahydro-2H-pyran-3-yl)pyridin-2-yl)urea, or a stereoisomer, N-oxide, tautomer, or physiologically tolerated acid addition salt thereof.

29. A heterocyclic compound that is 1-(8-fluoro-quinolin-4-yl)-3-(1′,2′,3′,6′-tetrahydro-[2,4′]bipyridinyl-6-yl)-urea, or a stereoisomer, N-oxide, tautomer, or physiologically tolerated acid addition salt thereof.