Novel compounds of the structural formula (I), and the pharmaceutically acceptable salts thereof, are antagonists of leukotriene B4 receptor 1 (BLT1) and may be useful in the treatment, prevention and suppression of diseases mediated by the leukotriene B4 receptor 1 (BLT1). The compounds of the present invention may be useful in the treatment of Type 2 diabetes mellitus, insulin resistance, hyperglycemia, dyslipidemia, lipid disorders, obesity, hypertension, Non-alcoholic fatty liver disease/nonalcoholic steatohepatitis, metabolic syndrome, atherosclerosis, and cancer.