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J Med Chem. 2011 Aug 11;54(15):5283-95. doi: 10.1021/jm101312a. Epub 2011 Jul 8.

Synthesis and pharmacological characterization of bicyclic triple reuptake inhibitor 3-aryl octahydrocyclopenta[c]pyrrole analogues.

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  • 1Discovery and Early Clinical Research, Sunovion Pharmaceuticals, Marlborough, Massachusetts 01752, United States. Liming.shao@sunovion.com

Abstract

The present work expands the chemical space known to offer potent inhibition of the serotonin transporter (SERT), norepinephrine transporter (NET), and dopamine transporter (DAT) and discloses novel bicyclic octahydrocyclopenta[c]pyrrole and octahydro-1H-isoindole scaffolds as potent triple reuptake inhibitors (TRIs) for the potential treatment of depression. Optimized compounds 22a (SERT, NET, DAT, IC(50) = 20, 109, 430 nM), 23a (SERT, NET, DAT, IC(50) = 29, 85, 168 nM), and 26a (SERT, NET, DAT, IC(50) = 53, 150, 140 nM) were highly brain penetrant, active in vivo in the mouse tail suspension test at 10 and 30 mpk PO, and were not generally motor stimulants at doses ranging from 1 to 30 mpk PO. Moderate in vitro cytochrome P450 (CYP) and potassium ion channel Kv11.1 (hERG) inhibition were uncovered as potential liabilities for the chemical series.

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