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Updated: Mar 7, 2026

Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
Computer-Assisted 3D Structure Elucidation of Natural Products using Residual Dipolar Couplings
Eduardo Troche-Pesqueira1, Clemens Anklin2, Roberto R Gil3
1Departamento de Química Orgánica, Universidade de Vigo, 36310, Vigo, Spain.
Abstract:
An enhanced computer-assisted procedure for the determination of the relative configuration of natural products, which starts from the molecular formula and uses a combination of conventional 1D and 2D NMR spectra, and residual dipolar couplings (RDCs), is reported. Having already the data acquired (1D/2D NMR and RDCs), the procedure begins with the determination of the molecular constitution using standard computer-assisted structure elucidation (CASE) and is followed by fully automated determination of relative configuration through RDC analysis. In the case of moderately flexible molecules the simplest data-explaining conformational model is selected by the use of the Akaike information criterion.
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