Fig. 1From: A trienone analog of curcumin, 1,7-bis(3-hydroxyphenyl)-1,4,6-heptatrien-3-one, possesses ROS- and caspase-mediated apoptosis in human oral squamous cell carcinoma cells in vitroStructures of curcumin (a), trienone 4 (b), and trienone 11 (c) determined by NMR (1H and 13C NMR, and 2D COSY, HMQC and HMBC) and mass spectroscopyBack to article page