Abstract: A novel compound, (E)-1-(pyridyn-4-yl)-3-(7-(trifluoromethyl)quinolin-2-yl)-prop-2-en-1-one, is provided herein. (E)-1-(pyridyn-4-yl)-3-(7-(trifluoromethyl)quinolin-2-yl)-prop-2-en-1-one is an inhibitor of 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) with surprisingly superior efficacy and pharmacodynamic properties in vitro and in vivo. Also provided are pharmaceutical compositions including the compound and methods of use of the compound in treating cancer and tumors in vivo, as well as inhibiting glycolytic flux and PFKFB3 enzymatic activity in cells.