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Chem Biodivers. 2014 Jun;11(6):904-9. doi: 10.1002/cbdv.201300247.

Chloranthones A - D: minor and unprecedented dinor-eudesmenes from Chloranthus elatior.

Author information

1
Department of Natural Products Chemistry, School of Pharmacy, Fudan University, No. 826 Zhangheng Rd., Shanghai 201203, P. R. China, (phone/fax: +86-21-51980172); Department of Natural Products for Chemical Genetic Research, Key Laboratory of Brain Functional Genomics, Ministry of Education, East China Normal University, No. 3663 North Zhongshan Rd., Shanghai 200062, P. R. China.

Abstract

Four novel naturally occurring diastereoisomers of dinor-eudesmenes, named chloranthones A-D (1-4, resp.), were isolated as minor components from the EtOH extract of the aerial parts of Chloranthus elatior. The unprecedented framework was established using extensive 2D-NMR techniques. Their absolute configurations were deduced from the observed Cotton effects in their circular dichroism (CD) spectra. A plausible biosynthetic pathway to the dinor-eudesmenes is proposed.

KEYWORDS:

Chloranthones; Chloranthus elatior; Diastereoisomers; Dinor-eudesmenes; Eudesmane sesquiterpenes

PMID:
24934675
DOI:
10.1002/cbdv.201300247
[Indexed for MEDLINE]

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