Patent ID: 8513420

Claim:
A compound of the general formula (I) including racemates, racemic-mixtures, pure enantiomers and their diasteromers, or salts or mixtures thereof A-(—CH 2 —B) n (I) wherein A is a spacer moiety selected from i) a phenyl derivative of the general formula (II) wherein each of R 1 , R 2 and R 3 being independently a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a hydroxyl group or a halogen; ii) a biphenyl derivative of the general formula (III) with each R 7 being independently a hydrogen or a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a hydroxyl group or a halogen; iii) a diphenyl alkane derivative of the general formula (IV) with each R 8 is independently a hydrogen or a C 1 -C 6 alkyl group, a C 1 -C 6 alkoxy group, a hydroxyl group or a halogen; X is a C 1 -C 6 alkylene group, in particular, a methylene group; B is independently an amino-naphthyridine group of the general formula having a structure selected from the group consisting of (V), (VI), and (VII) wherein each R 4 is independently a hydrogen, a C 1 -C 6 alkyl group, hydroxyl group C 1 -C 6 alkoxy group, halogen or NR 10 R 11 with R 10 and R 11 being independently hydrogen, or a C 1 -C 6 alkyl group, and m is an integer of 2 to 5, and n is an integer of 3 if A is a phenyl derivative of formula (II) or n is 4 if A is (III) or (IV).