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Mar. Drugs 2010, 8(1), 1-23; doi:10.3390/md8010001

Iron Complexation to Oxygen Rich Marine Natural Products: A Computational Study

Chemistry Department, Valdosta State University, Valdosta, GA 31698, USA
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Received: 4 December 2009 / Revised: 12 December 2009 / Accepted: 28 December 2009 / Published: 4 January 2010

Abstract

The natural products kahalalide F, halichondrin B, and discodermolide are relatively large structures that were originally harvested from marine organisms. They are oxygen rich structures that, to varying degrees, should have the ability to bind iron (II or III) by Fe-O and/or Fe-N bonds. In this semi empirical study, the binding of these natural products to iron (II) is studied and the aqueous stability factor (ASF) is used to determine which bonding configuration is most stable. The energy, the complex charge (+1), the average Fe-O (or Fe-N) bond distances and the dipole moments are used to calculate the ASF. The ASF provides insight to which complex will be the most stable and water soluble, important for a medicinal application. The ability of a molecule with a more than six oxygen and/or nitrogen atoms to bind iron (hexavalent, octahedral) by shifting which six atoms (O/N) are bound to the iron qualifies it as a polarity adaptive molecule. View Full-Text
Keywords: kahalalide F; halichondrin B; discodermolide; marine natural product; aqueous stability factor; computational kahalalide F; halichondrin B; discodermolide; marine natural product; aqueous stability factor; computational
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Manning, T.J.; Williams, J.; Jarrard, J.; Gorman, T. Iron Complexation to Oxygen Rich Marine Natural Products: A Computational Study. Mar. Drugs 2010, 8, 1-23.

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