The present application relates to novel tetrahydroquinoline derivatives, to a process for their preparation, to their use on their own or in combination for treating and/or preventing diseases and to their use for preparing medicaments, in particular as inhibitors of the cholesterol ester transfer protein (CETP) for the treatment and/or prevention of cardiovascular disorders, in particular hypolipoproteinemias, dyslipidemias, hypertriglyceridemias, hyperlipidemias, hypercholesterolemias and arteriosclerosis.