| 3HDZ: reference: Identification, synthesis and SAR of amino substituted pyrido[3,2b]pyrazinones as potent and selective PDE5 inhibitors., Owen DR, Walker JK, Jon Jacobsen E, Freskos JN, Hughes RO, Brown DL, Bell AS, Brown DG, Phillips C, Mischke BV, Molyneaux JM, Fobian YM, Heasley SE, Moon JB, Stallings WC, Joseph Rogier D, Fox DN, Palmer MJ, Ringer T, Rodriquez-Lens M, Cubbage JW, Blevis-Bal RM, Benson AG, Acker BA, Maddux TM, Tollefson MB, Bond BR, Macinnes A, Yu Y, Bioorg Med Chem Lett. 2009 Jun 6. PMID: 19540112 |
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