Free accessResearch articleFirst published online 2012-6
Determination of the Absolute Configuration of 19-OH-(-)-Eburnamonine Using a Combination of Residual Dipolar Couplings,DFT Chemical Shift Predictions,and Chiroptics
19-OH-(-)-eburnamonine 1 is a new indole alkaloid isolated from Bonafusia macrocalyx. A natural derivative from (-)-eburnamonine for which absolute configuration and conformation has been determined by making use of residual dipolar couplings enhanced NMR, circular dichroism spectra and high-level computations.
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