(3R)-3-Amino-4-(2,4,5-trifluorophenyl)-N-{4-[6-(2-methoxyethoxy)benzothiazol-2-yl]tetrahydropyran-4-yl}butanamide as a potent dipeptidyl peptidase IV inhibitor for the treatment of type 2 diabetes
and 3-amino-N-(4-aryltetrahydropyran-4-yl)butanamides were synthesized and evaluated as dipeptidylpeptidaseIV (DPP-IV) inhibitors. Derivatives incorporating the 6-substituted benzothiazole group showed highly potent DPP-IV inhibitory activity. Oral administration of (3R)-3-amino-4-(2,4,5-trifluorophenyl)-N-4-[6-(2-methoxyethoxy)benzothiazol-2-yl ]tetrahydropyran-4-yl}butanamide (12u) reduced blood