A compound of Formula: and pharmaceutically acceptable salts, solvates, solvates of salts, thereof, wherein: R 1 is Hal, LA, OH, O, NH 2 and/or NH, N 2, NO 2 CN, OCN, SCN, COOH, COO, CONH 2, CONH, CON 2, NHCO, NHCONH, NHCONH 2, NHSO 2 CHO, CO, SO 2 NH 2 SO 2, or a mono- or bicyclic, aliphatic or aromatic homo- or heterocycle having 0, 1, 2, 3 or 4 N, S and/or O atoms and 4, 5 or 6, 7, 8, 9, or 10 skeleton atoms which may be unsubstituted or, independently of one another, mono-, di- or trisubstituted by Hal, LA, OH, O, NH 2 and/or NH, N 2, NO 2 CN, OCN, SCN, COOH, COO, CONH 2, CONH, CON 2, NHCO, NHCONH, NHCONH 2, NHSO 2, CHO, CO, SO 2 NH 2, SO 2 (LA and/or SO 2 Hal or an unbranched or branched linear or cyclic alkyl having 1, 2, 3, 4, 5, 6, 7 or 8 C atoms, in which one or two CH 2 groups may be replaced by an O atom and/or by an -NH-, NH, -CO-, -NHCO- or -CH=CH- group, and/or in which a CH group may be replaced by -N-; R 2 is H, NH 2, NH, N 2 or NHCO; R 3 is N or CH; R 4 is H, an unbranched or branched linear or mono- or bicyclic alkyl group having 1, 2, 3,4, 5, 6, 7, 8 or 9 C atoms, in which one or two CH 2 groups may be replaced by an -O-,-NH-, group, and/or in which one or two CH groups may be replaced by -N-, and/or in which 1, 2 or 3 H atoms may be replaced by Hal or OH, R 5 is a monocyclic aromatic or aliphatic homo- or heterocycle having 0, 1 or 2 N, S and/or O atoms and 5 or 6 skeleton atoms which may be unsubstituted or, independently of one another, mono-, di- or trisubstituted by Hal, LA, OH, O, NH 2 and/or NH, N 2, NO 2, CN, OCN, SCN, COOH, COO, CONH 2, CONH, CON 2, NHCO, NHCONH, NHCONH 2, NHSO 2, CHO, CO, SO 2 NH 2, SO 2; Hal is F, Cl, Br or I, and LA is an unbranched or branched, saturated or partially unstaturated, linear hydrocarbon chain having 1, 2, 3 or 4 C atoms, wherein 1, 2 or 3 H atoms may be replaced by Hal. R 1 is Hal, LA, OH, O, NH 2 and/or NH, N 2, NO 2 CN, OCN, SCN, COOH, COO, CONH 2, CONH, CON 2, NHCO, NHCONH, NHCONH 2, NHSO 2 CHO, CO, SO 2 NH 2 SO 2, or a mono- or bicyclic, aliphatic or aromatic homo- or heterocycle having 0, 1, 2, 3 or 4 N, S and/or O atoms and 4, 5 or 6, 7, 8, 9, or 10 skeleton atoms which may be unsubstituted or, independently of one another, mono-, di- or trisubstituted by Hal, LA, OH, O, NH 2 and/or NH, N 2, NO 2 CN, OCN, SCN, COOH, COO, CONH 2, CONH, CON 2, NHCO, NHCONH, NHCONH 2, NHSO 2, CHO, CO, SO 2 NH 2, SO 2 (LA and/or SO 2 Hal or an unbranched or branched linear or cyclic alkyl having 1, 2, 3, 4, 5, 6, 7 or 8 C atoms, in which one or two CH 2 groups may be replaced by an O atom and/or by an -NH-, NH, -CO-, -NHCO- or -CH=CH- group, and/or in which a CH group may be replaced by -N-; R 2 is H, NH 2, NH, N 2 or NHCO; R 3 is N or CH; R 4 is H, an unbranched or branched linear or mono- or bicyclic alkyl group having 1, 2, 3,4, 5, 6, 7, 8 or 9 C atoms, in which one or two CH 2 groups may be replaced by an -O-,-NH-, group, and/or in which one or two CH groups may be replaced by -N-, and/or in which 1, 2 or 3 H atoms may be replaced by Hal or OH, R 5 is a monocyclic aromatic or aliphatic homo- or heterocycle having 0, 1 or 2 N, S and/or O atoms and 5 or 6 skeleton atoms which may be unsubstituted or, independently of one another, mono-, di- or trisubstituted by Hal, LA, OH, O, NH 2 and/or NH, N 2, NO 2, CN, OCN, SCN, COOH, COO, CONH 2, CONH, CON 2, NHCO, NHCONH, NHCONH 2, NHSO 2, CHO, CO, SO 2 NH 2, SO 2; Hal is F, Cl, Br or I, and LA is an unbranched or branched, saturated or partially unstaturated, linear hydrocarbon chain having 1, 2, 3 or 4 C atoms, wherein 1, 2 or 3 H atoms may be replaced by Hal.