1. The compound of the formula! ! where R1 is hydrogen, unsubstituted or substituted alkyl, or unsubstituted or substituted aryl; ! R2 is hydrogen, halo, unsubstituted or substituted aryl, unsubstituted or substituted cycloalkyl, unsubstituted or substituted alkyl, substituted carbonyl or unsubstituted or substituted heterocyclyl; ! R3 is hydrogen, halo, C1-C4 alkyl, C1-C4 alkoxy or cyano; ! each R4, independently of any of the others present, is a halo group, in particular fluoro, methyl, methoxy, or C1-4alkylpiperazine C1-4alkyl; ! And denotes C (= O) -N (R5) or N (R5) -C (= O), where! R5 is hydrogen or unsubstituted or substituted alkyl; ! R6 is hydrogen or unsubstituted or substituted alkyl; ! X is CH or N; and! n denotes from 0 to 2,! in free or salt form. ! 2. The compound according to claim 1 of formula I, where! R1 is hydrogen,! unsubstituted or substituted C1-C7 alkyl, for example methyl, ethyl or propyl, which may be linear or branched one or more times, and which is unsubstituted or substituted by one or more, preferably up to three, substituents independently selected from the group consisting of unsubstituted or substituted heterocyclyl as described below for R2, in particular a pyrrolidino group, a piperidino group, a piperidino group substituted with an amino group or an N-mono- or N, N-di- [C1-C7 alkyl, phenyl and / or phenyl C1-C7 alkyl) amino group, unsubstituted or N-C1-C7alki substituted piperidinyl bonded via a ring carbon atom, such as 1-isopropylpiperidin-4-yl, a piperazino group, a C1-C7 alkylpiperazino group such as a 4- (methyl, ethyl or isopropyl) piperazino group, morpholino group
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