Journal ArticleDOI
Bibenzyl derivatives from the orchid Bulbophyllum protractum
Reads0
Chats0
TLDR
In this paper, two new bibenzyl derivatives were isolated from the orchid Bulbophyllum protractum and designated bulbophyllin and bulbophilusidin.About:
This article is published in Phytochemistry.The article was published on 1997-01-01. It has received 31 citations till now. The article focuses on the topics: Bibenzyl.read more
Citations
More filters
Book ChapterDOI
Biaryls in nature: a multi-facetted class of stereochemically, biosynthetically, and pharmacologically intriguing secondary metabolites.
Journal ArticleDOI
Mono-, Bi-, and triphenanthrenes from the tubers of Cremastra appendiculata.
TL;DR: Six newphenanthrene derivatives, including three monophenanthrenes (1-3), two biphenanholdes (4 and 5), and a triphenanthrene (6), have been isolated from an ethanolic extract of the tubers of Cremastra appendiculata.
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.
Journal ArticleDOI
Bioactive Phenanthrene and Bibenzyl Derivatives from the Stems of Dendrobium nobile.
Xue-Ming Zhou,Cai-Juan Zheng,Li-She Gan,Guang-Ying Chen,Xiao-Peng Zhang,Xiao-Ping Song,Gao-Nan Li,Chong-Ge Sun +7 more
TL;DR: A new enantiomeric pair of spirodiketones, (+)- and (-)-denobilone A (1 and 2), three new phenanthrene derivatives (3-5), and three new biphenanthrenes (22-24), along with 11 known phenanthene derivatives (6-16), five known bibenzyl derivatives (17-21), and four known biphenAnthrenes
Journal ArticleDOI
Phenanthrene and other aromatic constituents of Bulbophyllum vaginatum
TL;DR: Two new phenanthrenes (4-methoxyphenanthrene-2,3,7-triol and 4-methyltetrol) and two new 9,10-dihydrophenthrenes were discovered in this paper.
References
More filters
Journal ArticleDOI
A steroidal ester from Coelogyne uniflora
P. L. Majumder,Suparna Pal +1 more
TL;DR: Uniflorin, a new steroidal compound of biogenetic importance, isolated from the orchid Coelogyne uniflora was shown to be 24-ethyl-4α,14α,24-trimethyl-9β,19-cyclo-cholest-25-en-3βyl cis-p -hydroxycinnamate from spectral and chemical evidence as mentioned in this paper.
Journal ArticleDOI
Four stilbenoids from the orchid Agrostophyllum khasiyanum
TL;DR: The orchid Agrostophyllum khasiyanum, which earlier yielded agrostophylloin (7-hydroxy-2,6-dimethoxy-5 H -phenanthro[4,5- bcd ]pyran-5-one), on further chemical investigation has now yielded four more new stilbenoids, besides imbricatin (2,7-dihydroxy-6-methoxy,9,10-dhydro-5 h-phenanthropanthro [4, 5-b
Journal ArticleDOI
Two bibenzyl derivatives from the orchid Cirrhopetalum andersonii
P.L. Majumder,Mausumi Basak +1 more
TL;DR: Two new bibenzyl derivatives were isolated from the orchid Cirrhopetalum andersonii and the structures were established as 2′,3-dihydroxy-3′-methoxy-4,5-methylenedioxyb Bibenzyl and 3,3′ -dihYDroxy-4-5- methylenedioXY-bibenzym, mainly from spectral evidence.
Related Papers (5)
Cumulatin and tristin, two bibenzyl derivatives from the orchids Dendrobium cumulatum and Bulbophyllum triste
P. L. Majumder,Shubhadeep Pal +1 more