Side‐Chain Effects on the 1‐(Bis‐aryl‐methylidene)‐[3]ferrocenophane Skeleton: Antiproliferative Activity against TNBC Cancer Cells and Comparison with the Acyclic Ferrocifen Series

As part of our ongoing study of the toxicity of compounds derived from 1,1‐bis(4‐hydroxyphenyl)‐2‐ferrocenylbut‐1‐ene, we have recently shown that closely analogous [3]ferrocenophane complexes have an in vitro toxicity level substantially higher than that of their ferrocene counterparts, particularly in the case of mono‐ and diphenol complexes. In this study we have examined whether the presence of a dimethylamino chain, analogous to the chain …