Journal ArticleDOI
Phenanthrene derivatives from the orchid Coelogyne cristata.
P.L Majumder,S Sen,S Majumder +2 more
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TLDR
The structures of coelogsinanthridin and coeloginanthrin were established as 3,5,7-trihydroxy-1,2-dimethoxy-9,10-dihydrophenanthrene and 3,4,5-triHydroxy-2,4-dimETHoxyphenanthene, respectively, which may have biological activities of phytoalexins and endogenous plant growth regulators.About:
This article is published in Phytochemistry.The article was published on 2001-10-01. It has received 45 citations till now. The article focuses on the topics: Coelogyne cristata.read more
Citations
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Journal ArticleDOI
Therapeutic orchids: traditional uses and recent advances--an overview.
TL;DR: The present study reviews the traditional therapeutic uses of orchidaceous preparations with its recent advances in pharmacological investigations that would be a useful reference for plant drug researches, especially in orchids.
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
Orchids : A review of uses in traditional medicine, its phytochemistry and pharmacology
TL;DR: A comprehensive account of chemical constituents and biological activities of orchids, including alkaloids, bibenzyl derivatives, flavonoids, phenanthrenes and terpenoids which have been isolated recently from this species are presented.
Journal ArticleDOI
Antimicrobial Activity of Necklace Orchids is Phylogenetically Clustered and can be Predicted With a Biological Response Method.
Richa Kusuma Wati,Richa Kusuma Wati,Esmée F. de Graaf,Diego Bogarín,Diego Bogarín,Reinout Heijungs,Reinout Heijungs,Rogier R van Vugt,Erik Smets,Erik Smets,Erik Smets,Barbara Gravendeel,Barbara Gravendeel,Barbara Gravendeel +13 more
TL;DR: In this paper, a comparative bioprospecting for a group of wild orchids using EBDCS (the Economic Botany Data Collection Standards) organ targeted and biological response methods was carried out.
Book ChapterDOI
Stilbenoids: Chemistry and bioactivities
TL;DR: Stilbenoids are formed by a particular branch of the flavonoid biosynthetic pathway and are of special interest to natural product researchers for their roles in plant resistance to fungal pathogens and their biological effects as discussed by the authors.
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Reference BookDOI
Handbook of phytoalexin metabolism and action.
M. Daniel,R. P. Purkayastha +1 more
TL;DR: Phytoalexins in Forage Legumes: Studies on Detoxification by Pathogens and the Role of Glycosidic Precursors in Roots Possible Role of Phy toalexin Inducer Chemicals in Plant Disease Control.
Journal ArticleDOI
Novel indole s,o-bisdesmoside, calanthoside, the precursor glycoside of tryptanthrin, indirubin, and isatin, with increasing skin blood flow promoting effects, from two calanthe species (orchidaceae)
Masayuki Yoshikawa,Toshiyuki Murakami,Akinobu Kishi,Tetsuo Sakurama,Hisashi Matsuda,Manabu Nomura,Hideaki Matsuda,Michinori Kubo +7 more
TL;DR: Based on their contents in the fresh and dried plant, calanthoside may be a common genuine glycoside of tryptanthrin, indirubin, and isatin in the plant.
Journal ArticleDOI
Lusianthrin and lusianthridin, two stilbenoids from the orchid Lusia indivisa
P.L. Majumder,Saswati Lahiri +1 more
TL;DR: Lusianthrin and lusian-thridin, two new stilbenoids, were isolated from the orchid Lusia indivisa.
Journal ArticleDOI
Bibenzyl derivatives from the orchid Dendrobium amoenum
P.L Majumder,S Guha,Souvik Sen +2 more
TL;DR: In this paper, the structures of amoenylin and isoamenylin were established as 4-hydroxy-3,4′-dihydroxy-5-methoxybibenzyl and 3, 4′-hydroxyl 3,4,5-trimethoxy bibenenzyl, respectively, mainly from spectral evidence.
Journal ArticleDOI
Structure of flavanthrin, the first dimeric 9,10-dihydrophenanthrene derivative from the orchid eria flava
Pralay Majumder,Subhra Banerjee +1 more
TL;DR: Flavanthrin, the first dimeric 9,10-dihydrophenanthrene derivative, was isolated from the orchid Eria flava which also yielded the previously reported 9, 10-dibhrenanthrene coelonin this paper.