“…The stability, non-toxicity and readily membrane-permeation of the ferrocenyl group, the accessibility of a large variety of derivatives, as well as its favorable electrochemical properties have made ferrocene and its derivatives very suitable for biological applications and for conjugation with biomolecules [11]. Several structural modification of established drugs with ferrocenyl moiety have been reported, such as ferrocene fluconazole [12], ferrocene aspirin [13], the anti-malarial drugs chloroquine (termed ferroquine), quinine, mefloquine, and artemisinin [14], and the anti-cancer drug tamixofen (termed ferrocifen) [15].…”