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Unambiguous 13C NMR assignment of acnistins and absolute configuration of acnistin A
J Gutiérrez Luis1, F Echeverri, W Quiñones
1Instituto de Bioorgánica, Centro de Productos Naturales Orgánicos Antonio Gonzalez, Universidad de La Laguna, Tenerife, Canary Island, Spain.
Steroids
|May 1, 1994
Abstract:
Carbon and proton atoms were fully assigned in this new type of withanolide by HMQC and HMBC experiments. The absolute configuration of acnistin A was determined by X-ray diffraction. Proton and 13C NMR measurements are particularly useful in identifying members of this group of natural products.