Compounds having the structure of Formula (I), including pharmaceutically acceptable salts of the compounds, are CETP inhibitors and may be useful for raising HDL-cholesterol and reducing LDL-cholesterol in human patients and for treating or preventing atherosclerosis. The chemical compounds that are disclosed cholesterol ester transfer protein (CETP) and are expected to have utility in raising HDL-C, lowering LDL-C, and in the treatment and prevention of atherosclerosis.