Cassane diterpenoids from Lonchocarpus laxiflorus
نویسندگان
چکیده
منابع مشابه
New cassane-type diterpenoids from Caesalpinia bonduc.
Six new cassane diterpenoids, named caesalls H-M (1-6), were isolated from the seed kernels of Caesalpinia bonduc. Their structures were elucidated on the basis of spectroscopic analysis, mainly NMR and MS. The absolute configurations of compounds 1 and 3 were determined by a single-crystal X-ray study using a mirror CuKα radiation and circular dichroism (CD) spectra, respectively. None of the ...
متن کاملCassane-type diterpenoids from the genus Caesalpinia
Caesalpinia is the name of a genus of enormous size and of ancient origin. It is named after the Italian naturalist, Andreas Caesalpino, of Arezzo (1519-1603). He was also a botanical collector, systematist and philosopher, chief physician to Pope Clement VIII, and a professor of medicine and botany in Pisa and Rome.[1] Caesalpinia consists of about 200 species, consisting of shrubs, tall climb...
متن کاملNew Cassane Diterpenoids from Caesalpinia sappan and their Antiplasmodial Activity.
One new cassane diterpene possessing an unusual N bridge between C-19 and C-20 named caesalsappanin R (1), as well as another new diterpene caesalsappanin S (2), were isolated from the seeds of Caesalpinia sappanwith methanol extract. Their structures were determined by spectroscopic analysis and examined alongside existing data from prior studies. Their biological activities were profiled by t...
متن کاملFlavonoids from Lonchocarpus muehlbergianus.
The light petroleum extract from the roots of Lonchocarpus muehlbergianus Hassl contained nine flavonoids, including six new ones. These are 2,4-cis-2,4,5,8-tetramethoxy-(2'',3'':6,7)-furanoflavan; 2,4-cis-4-hydroxy-2,5,8-trimethoxy-(2'',3'':6,7)-furanoflavan; 2,4-cis-2-prenyloxy-4,5,8-trimethoxy-(2'',3'':6,7)-furanoflavan; 2,4-cis-2-prenyloxy-4-hydroxy-5,8-dimethoxy-(2'',3'':6,7)-furanoflavan;...
متن کاملCytotoxic and Pro-Apoptotic Effects of Cassane Diterpenoids from the Seeds of Caesalpinia sappan in Cancer Cells.
The chemical study on the seeds of Caesalpinia sappan led to the isolation of five new cassane diterpenoids, phanginins R‒T (1-3) and caesalsappanins M and N (4 and 5), together with seven known compounds 6-12. Their structures were elucidated on the basis of NMR and HRESIMS analyses. The absolute configurations of compounds 1 and 4 were determined by the corresponding CD spectra. All the isola...
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ژورنال
عنوان ژورنال: Natural Product Communications
سال: 2008
ISSN: 1934-578X,1555-9475
DOI: 10.1177/1934578x0800300102