Patent ID: 8030347

Claim:
A compound of the formula (I) in which R 1 is hydrogen, benzyloxy, ethoxy, n-propoxy or a group of the formula R 8 —C(═O)—NH—, where ethoxy may be substituted in position 2, and n-propoxy in position 2 or 3, by (C 1 -C 6 )-alkoxy, amino, mono- or di-(C 1 -C 6 )-alkylamino, (C 3 -C 8 )-cycloalkylamino, N-(C 3 -C 8 )-cycloalkyl-N-(C 1 -C 6 )-alkylamino or by a 4- to 7-membered heterocycle which is bonded via an N atom, where mono- and di-(C 1 -C 4 )-alkylamino in turn may be substituted by hydroxy, (C 1 -C 4 )-alkoxy, amino, mono- or di-(C 1 -C 4 )-alkylamino, and in which R 8 is 5- or 6-membered heteroaryl which may be substituted by (C 1 -C 4 )-alkyl or halogen, R 2 is hydrogen, ethoxy or n-propoxy, where ethoxy may be substituted in position 2, and n-propoxy in position 2 or 3, by (C 1 -C 6 )-alkoxy, amino, mono- or di-(C 1 -C 6 )-alkylamino, (C 3 -C 8 )-cycloalkylamino, N-(C 3 -C 8 )-cycloalkyl-N-(C 1 -C 6 )-alkylamino or by a 4- to 7-membered heterocycle which is bonded via an N atom, where mono- and di-(C 1 -C 6 )-alkylamino in turn may be substituted by hydroxy, (C 1 -C 4 )-alkoxy, amino, mono- or di-(C 1 -C 4 )-alkylamino, but where R 1 and R 2 are not simultaneously hydrogen, R 3 is hydroxy or amino and R 4 is hydrogen, or R 3 and R 4 together with the carbon atom to which they are bonded form a group of the formula >C═O or >C═N—OH, R 5 is hydrogen, n is the number 0, 1, 2 or 3, R 6 is located in the meta or para position relative to the point of linkage of the phenyl ring to the tricycle, and is (C 6 -C 10 )-aryl, 5- to 10-membered heteroaryl or a group of the formula —NR 9 R 10 , where aryl and heteroaryl in turn may each be substituted once to twice, identically or differently, by halogen, cyano, (C 1 -C 4 )-alkylsulfonyl or a group of the formula —NR 9 R 10 , and in which R 9 and R 10 are independently of one another hydrogen, (C 1 -C 6 )-alkyl, phenyl, benzyl or pyridylmethyl, or together with the nitrogen atom to which they are bonded form a 4- to 7-membered heterocycle, and R 7 is located in the meta or para position relative to the point of linkage of the phenyl ring to the tricycle, and in the ortho position relative to R 6 , and is hydrogen, halogen, (C 1 -C 6 )-alkyl, (C 1 -C 6 )-alkoxy or a group of the formula —NR 11 R 12 , in which R 11 and R 12 are independently of one another hydrogen, (C 1 -C 6 )-alkyl, phenyl, benzyl or pyridylmethyl, or together with the nitrogen atom to which they are bonded form a 4- to 7-membered heterocycle, or R 6 and R 7 together with the phenyl ring to which they are bonded form a group of the formula or a salt, solvate or solvate of the salt thereof.