Document Report Card

ID: ALA2146432

Journal: ACS Med Chem Lett

Title: Discovery of Selective Small Molecule ROMK Inhibitors as Potential New Mechanism Diuretics.

Authors: Tang H, Walsh SP, Yan Y, de Jesus RK, Shahripour A, Teumelsan N, Zhu Y, Ha S, Owens KA, Thomas-Fowlkes BS, Felix JP, Liu J, Kohler M, Priest BT, Bailey T, Brochu R, Alonso-Galicia M, Kaczorowski GJ, Roy S, Yang L, Mills SG, Garcia ML, Pasternak A.

Abstract: The renal outer medullary potassium channel (ROMK or Kir1.1) is a putative drug target for a novel class of diuretics that could be used for the treatment of hypertension and edematous states such as heart failure. An internal high-throughput screening campaign identified 1,4-bis(4-nitrophenethyl)piperazine (5) as a potent ROMK inhibitor. It is worth noting that this compound was identified as a minor impurity in a screening hit that was responsible for all of the initially observed ROMK activity. Structure-activity studies resulted in analogues with improved rat pharmacokinetic properties and selectivity over the hERG channel, providing tool compounds that can be used for in vivo pharmacological assessment. The featured ROMK inhibitors were also selective against other members of the inward rectifier family of potassium channels.

CiteXplore: 24900480

DOI: 10.1021/ml3000066