Journal
CHIRALITY
Volume 17, Issue 9, Pages 577-589Publisher
WILEY
DOI: 10.1002/chir.20210
Keywords
conformational analysis; TDDFF; molecular dynamics; flavonoid; collagen
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Conformational analysis of (2R,3S,4R)-(+)-3,3',4,4',7-flavanpentol, a flavonoid compound displaying both antioxidant and pro-oxidant properties, is performed by molecular mechanics and density functional theory calculations both in the gas phase and in methanol solution by using the Polarizable Continuum Model. Nine different conformations are identified. Absorption (UV) and circular dichroism (CD) spectra and optical rotations are calculated by means of time dependent density functional theory (TDDFT) and compared with experiments. The effects of a complex environment formed by water and proline-rich peptide molecules on the conformational characteristics of (2R,3S,4R)-(+)-3,3',4,4',7-flavanpentol and therefore on its UV and CD spectra are investigated by atomistic molecular dynamics simulations.
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