title: Conformational solvation studies of LIGNOLs with molecular dynamics and conductor-like screening model.
abstract: Molecular dynamics (MD) simulations were performed on sterically hindered α-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.
authors.affiliation: Centre of Excellence for Functional Materials, Physical Chemistry, Åbo Akademi University, Porthansgatan 3-5, 20500 Åbo (Turku), Finland.
authors.forename: Thomas
authors.initials: T
authors.lastname: Sandberg
authors.affiliation: Organic Chemistry, Åbo Akademi University, Biskopsgatan 8, 20500 Åbo (Turku), Finland.
authors.forename: Patrik
authors.initials: P
authors.lastname: Eklund
authors.affiliation: Centre of Excellence for Functional Materials, Physical Chemistry, Åbo Akademi University, Porthansgatan 3-5, 20500 Åbo (Turku), Finland.
authors.forename: Matti
authors.initials: M
authors.lastname: Hotokka
mesh_terms: D017705:Lignans / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D056004:Molecular Dynamics Simulation; D012984:Software; D013764:Tetrahydronaphthalenes / Q000737:chemistry*
chemical_list: D017705:Lignans; D013764:Tetrahydronaphthalenes; C419306:hydroxymatairesinol; C421915:conidendrin