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Exciton Coupling Circular Dichroism of an Allylic N-imidazolyl Group in Amaranzole A, a Marine Natural Product from Phorbas amaranthus
A new steroidal alkaloid amaranzole A (10) with a C24-imidazolyl group displays an unusually large split-CD spectrum at short wavelengths that we assign to exciton coupled circular dichroism (ECCD) between the polarized π-π* transitions of the C25 C=C double bond and the imidazolyl group. A model 4,...
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| Main Authors: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado: |
2008
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| Assuntos: | |
| Acceso en liña: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2615005/ https://ncbi.nlm.nih.gov/pubmed/18690668 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1002/chir.20636 |
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