Fig. 1. (a) 40 μM of eight randomly selected chiral N,N′-pyrrolylindoles were incubated individually with HL-60 cancer cells, A549 lung carcinoma cells, SMMC-7721 hepatoma cells, MDA-MB-231 breast adenocarcinoma cells, and SW480 colon cancer cells. (b) The cell viability after incubation with different concentrations of three chiral N,N′-pyrrolylindoles and their IC50 values were determined in comparison to cisplatin.
