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Molecules 2014, 19(12), 21200-21214; doi:10.3390/molecules191221200

Design and Synthesis of a Series of Truncated Neplanocin Fleximers

1
Department of Chemistry & Biochemistry, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
2
Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, 120 University Place, Glasgow G12 8TA, UK
*
Author to whom correspondence should be addressed.
Received: 23 October 2014 / Revised: 8 December 2014 / Accepted: 9 December 2014 / Published: 16 December 2014
(This article belongs to the Special Issue Nucleoside Modifications)
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Abstract

In an effort to study the effects of flexibility on enzyme recognition and activity, we have developed several different series of flexible nucleoside analogues in which the purine base is split into its respective imidazole and pyrimidine components. The focus of this particular study was to synthesize the truncated neplanocin A fleximers to investigate their potential anti-protozoan activities by inhibition of S-adenosylhomocysteine hydrolase (SAHase). The three fleximers tested displayed poor anti-trypanocidal activities, with EC50 values around 200 μM. Further studies of the corresponding ribose fleximers, most closely related to the natural nucleoside substrates, revealed low affinity for the known T. brucei nucleoside transporters P1 and P2, which may be the reason for the lack of trypanocidal activity observed. View Full-Text
Keywords: fleximer; carbocyclic nucleosides; 3-deazaneplanocin A; SAHase; trypanomiasis fleximer; carbocyclic nucleosides; 3-deazaneplanocin A; SAHase; trypanomiasis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zimmermann, S.C.; O'Neill, E.; Ebiloma, G.U.; Wallace, L.J.M.; De Koning, H.P.; Seley-Radtke, K.L. Design and Synthesis of a Series of Truncated Neplanocin Fleximers. Molecules 2014, 19, 21200-21214.

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