Review Question - QID 108291

A 2-year-old boy is brought the his primary care physician for persistent failure to thrive. He has not been meeting normal motor developmental milestones. Further questioning reveals a family history of congenital kidney disorders, although the parents do not know details. Based on clinical suspicion a panel of lab tests are ordered which reveal a sodium of 129 mg/dL (normal range 136-145), a potassium of 3.1 mg/dL (normal range 3.5-5.0), a bicarbonate of 32 mg/dL (normal range 22-28) and a pH of 7.5 (normal range 7.35-7.45). Urinary calcium excretion is also found to be increased. Which of the following drugs has the most similar mechanism of action to the most likely diagnosis in this patient?