As described, 3-SC 37, 39, and 46 (Figure 48) showed to have much higher cytotoxicity against four epithelial human oral squamous cell carcinoma lines (Ca9-22, HSC-2, HSC-3, and HSC-4) than against human normal mesenchymal cells (HGF, HPLF, and HPC) [43]. Here, HGF is linked to oral cavity squamous cell carcinoma.