Journal ArticleDOI
Two substituted bibenzyls and a dihydrophenanthrene from Cymbidium Aloifolium
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TLDR
Three new substituted bibenzyls (1,2-diarylethanes) aloifol I and aloIFol II and a new substituted 9,10-dihydrophenanthrene, 6-O-methylcoelonin in addition to batatasin III, coel onin and gigantol have been isolated and characterized.About:
This article is published in Phytochemistry.The article was published on 1987-01-01. It has received 70 citations till now. The article focuses on the topics: Cymbidium aloifolium.read more
Citations
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Journal ArticleDOI
Natural phenanthrenes and their biological activity.
TL;DR: The present study furnishes an overview of the hydroxy or/and methoxy-substituted 9,10-dihydro/phenanthrene, methylated, prenylated and other monomeric derivatives, dimeric and trimeric phenanthrenes and their biological activities.
Journal ArticleDOI
The biological activity and chemistry of the southern African Combretaceae
TL;DR: It appears that synergism plays a role in antimicrobial activity of plant extracts and that the hope of isolating a single compound that can be used as a new agent to address antibiotic resistance has been frustrated.
Journal ArticleDOI
Phenanthrenes, dihydrophenanthrenes and bibenzyls from the orchid bulbophyllum vaginatum
TL;DR: Two new phenanthrenes (4,9-dimethoxyphenanthrene-2,5-diol and 4,6-dimethyltoxymethylhexane-1,3,7-triol) and two new 9,10-dihydrophenanthreness (4methoxy-9, 10-dibenzyls and the triterpenoid friedelin were isolated and characterized from the hexane extract of the orchid Bulbophyllum vaginatum) were determined by spectroscopic analyses
Book ChapterDOI
Biaryls in nature: a multi-facetted class of stereochemically, biosynthetically, and pharmacologically intriguing secondary metabolites.
Journal ArticleDOI
Cytotoxic phenolics from Bulbophyllum odoratissimum
TL;DR: A phytochemical study of the whole plant of Bulbophyllum odoratissimum (J.E. Smith) Lindl (Orchidaceae) and cytotoxicity measurement of its isolated compounds have been carried out and all compounds, except for 9, have not been reported in this plant before.
References
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Journal ArticleDOI
13C NMR spectroscopy of neolignans
Ernest Wenkert,Hugo E. Gottlieb,Otto R. Gottlieb,Marilia O. da S. Pereira,Mariza Drumond Formiga +4 more
TL;DR: In this article, the 13 C NMR spectra of 15 neolignans of several structural types and two lignans were analyzed and their carbon shifts assigned, and the shifts of pyrogallol ether and ethyl phenyl carbinyl ether models were used in this connection.
Journal ArticleDOI
Coelonin, A 9,10-dihydrophenanthrene from the orchids Coelogyne ochracea and Coelogyne elata
TL;DR: 2,7-Dihydroxy-4-methoxy-9,10-dihydrophenanthrene was isolated and identified from the whole plant of Coelogyne ochracea and C. elata.
Journal ArticleDOI
Phenolic constituents of Coelogyne ovalis
TL;DR: The structure of 3′- O -methylbatatasin III, a new bibenzyl of the East Himalayan orchid, Coelogyne ovalis, has been established on the basis of spectral and chemical data.
Journal ArticleDOI
A substituted 1,2-diarylethane from Cymbidium giganteum
TL;DR: In addition to sitosterol and taraxerone, a new substituted 1,2-diarylethane, gigantol has been isolated from Cymbidium giganteum.
Related Papers (5)
Coelonin, A 9,10-dihydrophenanthrene from the orchids Coelogyne ochracea and Coelogyne elata
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Pralay Majumder,Subhra Banerjee +1 more