| 3HC8: reference: Investigation of aminopyridiopyrazinones as PDE5 inhibitors: Evaluation of modifications to the central ring system., Hughes RO, Walker JK, Cubbage JW, Fobian YM, Rogier DJ, Heasley SE, Blevis-Bal RM, Benson AG, Owen DR, Jacobsen EJ, Freskos JN, Molyneaux JM, Brown DL, Stallings WC, Acker BA, Maddux TM, Tollefson MB, Williams JM, Moon JB, Mischke BV, Rumsey JM, Zheng Y, Macinnes A, Bond BR, Yu Y, Bioorg Med Chem Lett. 2009 Jun 6. PMID: 19539468 |
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