Compounds having the structure of Formula I, including pharmaceutically acceptable salts of the compounds, are CETP inhibitors and are useful for raising HDL-cholesterol, reducing LDL-cholesterol, and for treating or preventing atherosclerosis.本發明揭示具有式I之結構之化合物,包括該等化合物之醫藥上可接受之鹽,其係CETP抑制劑且可用於升高HDL-膽固醇、降低LDL-膽固醇及治療或預防動脈粥樣硬化。