A compound of formula wherein according to embodiment D-G1 of D 1 to D 3 (i) each denote N, or (ii) 2 denote N and 1 denotes CH, or (iii) 1 denotes N, 2 denote CH, or (iv) each denote CH and one or two H-atoms attached to C optionally are replaced by a substituent selected from the group consisting of C 1-4 -alkyl, -CF 3, -CHF 2, -CN and -OCH 3; n is 1, 2 or 3; according to embodiment A-G1 denotes a 4-membered bridge composed of a -C(NH 2)=N- unit and a second unit of -CH=CH- including both orientations for unsymmetric units, wherein a H-atom attached to a C-atom optionally is replaced by a substituent selected from the group consisting of F, Cl, CH 3, CF 3 and CHF 2; R 1 according to embodiment R 1 -G1 denotes H, F, CN, C 1-3 -alkyl, CF 3, OH, or -OCH 3; R 2 according to embodiment R 2 -G1 denotes H, F, CN, CF 3, CHF 2, -OCH 3 or a C 1-3 -alkyl group optionally substituted by -OH; or R 1 and R 2 according to embodiment R 1/2 -G1 together denote =O or together with the carbon atom they are attached to form a 3-7 membered saturated ring system wherein 1 -CH 2 - group optionally is replaced by O, S or NH; Y 1 according to embodiment Y 1 -G1 denotes a divalent phenyl ring or a divalent 6-membered heteroaromatic ring containing 1 or 2 =N- ring members, wherein both ring systems are optionally substituted at one or two carbon atoms by a halogen atom, C 1-3 -alkyl, -C 1-4 -cycloalkyl, -CF 3, -CN, -OH, HO-C 1-3 -alkyl- or C 1-3 -alkyloxy-; L according to embodiment L-G1 denotes a bond or a linker selected from -C(R 3 R 4)-and -O-, wherein R 3 denotes H, F, CN, C 1-3 -alkyl, CF 3, CHF 2, -OH, -CH 2 -OH or -OCH 3, R 4 denotes H, F, CN, C 1-3 -alkyl, CF 3, CHF 2, -CH 2 -OH or -OCH 3; and Y 2 according to embodiment Y 2 -G1 denotes a fused or spiro polycyclic ring system attached to L via a C-atom or, where applicable, via a N-atom, containing 6 to 12 ring members in total, wherein 0 to 3 ring members are heteroatoms selected from -N<, -NH-, -N=, -O-, -S- with the proviso that one ring does not contain more than one heteroatom selected from -O- and -S-, the polycyclic ring system is saturated, or one ring is saturated and a second ring is partially unsaturated, or one ring is saturated and a second ring is aromatic or heteroaromatic, or one ring is partially unsaturated and a second ring is aromatic or heteroaromatic, or a first and a second ring of the polycyclic ring system are partially unsaturated one -CH 2 - ring member linked to a N-atom optionally is replaced by -C -, and wherein the polycyclic ring system is optionally substituted at one or two carbon atoms by one or two groups independently selected from halogen atoms, C 1-3 -alkyl, -CF 3, -CN, -OH, HO-C 1-3 -alkyl- and C 1-3 -alkyloxy-, with the proviso that two substituents containing an O-atom cannot be attached to the same carbon atom, and wherein the H-atom in one or more NH groups present in Y 2 optionally is replaced by C 1-4 -alkyl or -CH 2 -C 1-4 -cycloalkyl; wherein in any definition mentioned hereinbefore and if not specified otherwise, any alkyl group or sub-group may be straight-chained or branched, or a salt thereof. (i) each denote N, or (ii) 2 denote N and 1 denotes CH, or (iii) 1 denotes N, 2 denote CH, or (iv) each denote CH R 3 denotes H, F, CN, C 1-3 -alkyl, CF 3, CHF 2, -OH, -CH 2 -OH or -OCH 3, R 4 denotes H, F, CN, C 1-3 -alkyl, CF 3, CHF 2, -CH 2 -OH or -OCH 3; and 0 to 3 ring members are heteroatoms selected from -N<, -NH-, -N=, -O-, -S- with the proviso that one ring does not contain more than one heteroatom selected from -O- and -S-, the polycyclic ring system is saturated, or one ring is saturated and a second ring is partially unsaturated, or one ring is saturated and a second ring is aromatic or heteroaromatic, or one ring is partially unsaturated and a second ring is aromatic or heteroaromatic, or a first and a second ring of the polycyclic ring system are partially unsaturated one -CH 2 - ring member linked to a N-atom optionally is replaced by -C -, and wherein the polycyclic ring system is optionally substituted at one or two carbon atoms by one or two groups independently selected from halogen atoms, C 1-3 -alkyl, -CF 3, -CN, -OH, HO-C 1-3 -alkyl- and C 1-3 -alkyloxy-, with the proviso that two substituents containing an O-atom cannot be attached to the same carbon atom, and wherein the H-atom in one or more NH groups present in Y 2 optionally is replaced by C 1-4 -alkyl or -CH 2 -C 1-4 -cycloalkyl;