Eiki Takahashi, T. Arai, Masato Akahira
Sep 15, 2014
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Journal
Bioorganic & medicinal chemistry letters
Abstract
We describe the discovery of phenoxymethylbenzamide derivatives as a novel class of glycine transporter type-2 (GlyT-2) inhibitors. We found hit compound 1 (human GlyT-2, IC50=4040 nM) in our library and converted its 1-(1-(naphthalen-2-ylmethyl)piperidin-4-yl)pyrrolidin-3-yl group to an 1-(N,N-dimethylaminopropyl)piperidyl group and its tert-butyl group to a trifluoromethyl group to obtain N-(1-(3-(dimethylamino)propyl)piperidin-4-yl)-4-((4-(trifluoromethyl)phenoxy)methyl)benzamide (20). Compound 20 showed good inhibitory activity against human GlyT-2 (IC50=15.3 nM) and exhibited anti-allodynia effects in a mouse neuropathic pain model.