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Tollefson MB, Acker BA, Jacobsen EJ, Hughes RO, Walker JK, Fox DNA, Palmer MJ, Freeman SK, Yu Y, Bond BR. 1-(2-(2,2,2-Trifluoroethoxy)ethyl-1H-pyrazolo[4,3-d]pyrimidines as potent phosphodiesterase 5 (PDE5) inhibitors. Bioorganic & Medicinal Chemistry Letters. 2010 May;20(10):3125–8. doi: 10.1016/j.bmcl.2010.03.106. |