“…Moreover, ruthenium complexes based anticancer drugs, such as NAMI-A and KP1019, have successfully reached human clinical trials and Ru(II) arene complexes, for instance RAPTA-complexes, have shown excellent in vitro results. Among them, ruthenium complex L-bipyridine 2-(2-trifluoromethphenyl) imidzole [4,5-f ] [1,10] phenanthroline ruthenium(II) chloride (L-[Ru(bpy) 2 -(o-tFPIP)](Cl) 2 Á2H 2 O, L-WH0402) was found to have the best activity among a number of chiral ruthenium complexes. 2,16,17 Furthermore, because most of the biological molecules are chiral, optical isomers of metallic complexes would interact differently with them and, therefore, different biological effects with a chiral molecule such as DNA should be observed.…”