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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
C18 dibenzocyclooctadiene lignans from Kadsura philippinensis
Journal of Natural Products, Volume 69, No. 6, Year 2006
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Description
Four new C18 dibenzocyclooctadiene lignans, kadsuphilins A (1) and B (3), 6-epi-gomisin (2), and 1-demethylkadsuphilin A (4), along with eight known related metabolites, were isolated from an EtOAc fraction of an alcoholic extract of the aerial parts of Kadsura philippinensis growing in Taiwan. The structures of 1-4 were elucidated on the basis of spectroscopic analyses, including 2D NMR (HMQC, HMBC, and NOESY) experiments, and by comparison of their spectroscopic data with those of related metabolites. The configurations of the biphenyl and cyclooctadiene moieties were deduced from circular dichroism (CD) and NOESY NMR spectra, respectively. Some of the compounds showed radical-scavenging activity in a DPPH-HPLC method. © 2006 American Chemical Society and American Society of Pharmacognosy.
Authors & Co-Authors
Shen, Yaching
Taiwan, Kaohsiung
National Sun Yat-sen University
Cheng, Yuanbin
Taiwan, Kaohsiung
National Sun Yat-sen University
Ahmed, Atallah F.
Taiwan, Kaohsiung
National Sun Yat-sen University
Kuo, Yao Haur
Taiwan, Taipei
National Research Institute of Chinese Medicine Taiwan
Statistics
Citations: 28
Authors: 4
Affiliations: 3
Identifiers
Doi:
10.1021/np058134j
ISSN:
01633864