Abstract
A series of ferrocene‐substituted derivatives (2a, 2b, 2c, 2d, 2e, 2f, 2g) of the known drug 3,3′‐diindolylmethane (DIM) were prepared and tested for their in vitro antitumor activity. The derivatives 2a (featuring indole moiety), 2b (featuring 2‐methylindole moiety) and 2f (featuring 5‐nitroindole moiety) were growth‐inhibiting in vitro at lower concentrations than DIM in various tumor cells including pancreas cancer (BcPC‐3), three DIM‐resistant cancer cell lines (518 A2, KB‐V1/Vbl, HT‐29), triple‐negative breast cancer (MDA‐MB‐231) and prostate cancer (PC‐3). Derivatives 2a, 2b and 2f were the most active compounds of this series, qualifying as drug candidates for various cancer diseases. Copyright © 2016 John Wiley & Sons, Ltd.
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