Journal ArticleDOI
Pendulin, a polyoxygenated phenanthrene derivative from the orchid Cymbidium pendulum
P.L. Majumder,R.C. Sen +1 more
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In this article, the orchid Cymbidium pendulum was isolated and the structure of the pendulum's phenanthrene derivative, pendulin, was further confirmed by its 13 C NMR spectral data.About:
This article is published in Phytochemistry.The article was published on 1991-01-01. It has received 36 citations till now.read more
Citations
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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
Chemical constituents from Dendrobium densiflorum.
TL;DR: Among the identified compounds, five were found to exhibit anti-platelet aggregation activity in vitro and the structure of a previously reported compound dendroflorin obtained from the plant was revised on the basis of spectroscopic analysis.
Journal ArticleDOI
Medicinal orchids and their uses: Tissue culture a potential alternative for conservation
TL;DR: Plant tissue culture could be one of the most suitable alternative tools to minimize the pressure on natural population of medicinal orchids and their sustainable utilization.
Journal ArticleDOI
Bi-bicyclic and bi-tricyclic compounds from Dendrobium thyrsiflorum.
Guang-Nong Zhang,Ling-Yan Zhong,S. W. Annie Bligh,Ying-Li Guo,Chaofeng Zhang,Mian Zhang,Zheng-Tao Wang,Luo-Shan Xu +7 more
TL;DR: Compounds 1-3 and denthyrsinin (1,5,7-trimethoxyphenanthrene-2,6-diol; 4) showed significant cytotoxic activities against Hela (13.5, 9.5 and 4.8 microM, respectively) cell lines.
Journal ArticleDOI
Antifibrotic phenanthrenes of Dendrobium nobile stems.
TL;DR: Antifibrotic activity of compounds 1- 19 was evaluated employing HSC-T6, an immortalized rat hepatic stellate cell line, as an in vitro assay system by assessing cell proliferation.
References
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Two stilbenoids from the orchid Eria flava
P.L. Majumder,S. Banerjee +1 more
TL;DR: Flavanthridin and flavanthrinin, two new stilbenoids, were isolated from the orchid Eria flava which also afforded 2,7-dihydroxy-4-methoxy-9,10- dihydrophenanthrene (coelonin), its 1,1′-dimer (flavanthrin).
Journal ArticleDOI
Cirrhopetalanthrin, a dimeric phenanthrene derivative from the orchid Cirrhopetalum maculosum
TL;DR: Cirrhopetalanthrin, a new dimeric phenanthrene derivative, was isolated from the orchid maculosum and its structure was deduced from spectral and chemical evidence as discussed by the authors.
Journal ArticleDOI
Volucrin, a new dimeric phenanthrene derivative from the orchid lusia volucris
P.L. Majumder,Saswati Lahiri +1 more
TL;DR: Volucrin, a new dimeric phenanthrene derivative, was isolated from the orchid Lusia Volucris which also afforded 3',4-dihydroxy-3, 5'-dimethoxy-bibenzyl (2 ) and the perfumery constituents methyl 2,4-Dihydrox-6-methyl benzoate (3a ) and methyl 2.
Journal ArticleDOI
Cirrhopetalin, a phenanthrene derivative from Cirrhopetalum andersonii
P.L. Majumder,Mausumi Basak +1 more
TL;DR: Cirrhopetalum andersonii was shown to be 7-hydroxy-4methoxy-2,3-methylenedioxy phenanthrene mainly from spectroscopic evidence.
Related Papers (5)
Structure of flavanthrin, the first dimeric 9,10-dihydrophenanthrene derivative from the orchid eria flava
Pralay Majumder,Subhra Banerjee +1 more
Lusianthrin and lusianthridin, two stilbenoids from the orchid Lusia indivisa
P.L. Majumder,Saswati Lahiri +1 more