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, 18 (8), 2562-6

Design and Synthesis of Morpholine Derivatives. SAR for Dual Serotonin & Noradrenaline Reuptake Inhibition

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Design and Synthesis of Morpholine Derivatives. SAR for Dual Serotonin & Noradrenaline Reuptake Inhibition

Paul V Fish et al. Bioorg Med Chem Lett.

Abstract

Single enantiomer (SS) and (RR) 2-[(phenoxy)(phenyl)methyl]morpholine derivatives 5, 8-23 are inhibitors of monoamine reuptake. Target compounds were prepared using an enantioselective synthesis employing a highly specific enzyme-catalysed resolution of racemic n-butyl 4-benzylmorpholine-2-carboxylate (26) as the key step. Structure-activity relationships established that serotonin and noradrenaline reuptake inhibition are functions of stereochemistry and aryl/aryloxy ring substitution. Consequently, selective SRI, selective NRI and dual SNRIs were all identified. One of these compounds, a potent and selective dual SNRI, (SS)-5a was selected as a candidate for further pre-clinical evaluation.

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