Cell toxicity of compound C2, C6, and their 2D analogs tested in a cancer cell line and normal fibroblasts.

<p><b>A)</b> SCC 22B cells were treated with increasing concentrations of the indicated compound and 48 hours later cell numbers were determined (n = 3). <b>B)</b> MRC5 cells (fibroblast) were treated with increasing concentrations of the indicated compounds and 48 hours later cell numbers were determined using the CyQuant kit (n = 3).