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Int. J. Mol. Sci. 2012, 13(8), 9845-9863; doi:10.3390/ijms13089845
Article

Conformational Solvation Studies of LIGNOLs with Molecular Dynamics and Conductor-Like Screening Model

1,* , 2
 and
1
Received: 18 June 2012 / Revised: 16 July 2012 / Accepted: 30 July 2012 / Published: 7 August 2012
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Abstract

Molecular dynamics (MD) simulations were performed on sterically hindered -conidendrin-based chiral 1,4-diols (LIGNOLs) from the naturally occurring lignan hydroxymatairesinol (HMR) using the GROMACS software. The aim of this study was to explore the conformational behaviour of the LIGNOLs in aqueous solution adopting the TIP4P model. The topologies of the LIGNOLs were constructed manually and they were modeled with the OPLS-AA force field implemented in GROMACS. The four most relevant torsional angles in the LIGNOLs were properly analyzed during the simulations. The determining property for the conformation preferred in aqueous solution was found to be the lowest energy in gas phase. The solvation effects on the LIGNOLs were also studied by quantum chemical calculations applying the COnductor-like Screening MOdel (COSMO). The hydration studies of the MD simulations showed that several of these LIGNOLs, produced from a renewable source, have a great potential of acting as chiral catalysts.
Keywords: conformation; chiral 1,4-diol; lignan; LIGNOL; molecular dynamics; GROMACS; COSMO conformation; chiral 1,4-diol; lignan; LIGNOL; molecular dynamics; GROMACS; COSMO
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.

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Sandberg, T.; Eklund, P.; Hotokka, M. Conformational Solvation Studies of LIGNOLs with Molecular Dynamics and Conductor-Like Screening Model. Int. J. Mol. Sci. 2012, 13, 9845-9863.

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