Agrostophyllin, a naturally occurring phenanthropyran derivative from Agrostophyllum khasiyanum
TL;DR: Agrostophyllin, the first naturally occurring phenanthropyran derivative, was isolated from the orchid AgrostophyLLum khasiyanum and it was shown to be able to biosynthesise nonvolatile substance such as polymethine.
About: This article is published in Phytochemistry.The article was published on 1988-01-01. It has received 26 citations till now. The article focuses on the topics: Agrostophyllum & Derivative (chemistry).
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01 Jan 2016
TL;DR: Twenty-seven species in 12 genera (Acampe, Acriopsis, Aerides, Agrostophyllum, Amitostigma, Anacamptis, Anoectochilus, Antigonium, Apostasia, Appendiculata, Arachnis and Arundina) are described and several are illustrated.
Abstract: Twenty-seven species in 12 genera (Acampe, Acriopsis, Aerides, Agrostophyllum, Amitostigma, Anacamptis, Anoectochilus, Antigonium, Apostasia, Appendiculata, Arachnis and Arundina) are described and several are illustrated. Anoectochilus has been shown through surrogate markers to have hepatoprotective, anti-inflammatory, antidiabetic, lipid-lowering, cytotoxic, anabolic and immunomodulatory properties. In animal experiments, Anoectochilus formosanus extracts enhanced memory retention, promoted foetal lung maturation and prevented bone loss. Usage of three endemic Amitostigma species is confined to traditional Chinese medicine (TCM). Anacamptis species have long usage as sources of salep in Europe and the Middle East, whereas their tubers are collected from northern Iran for local and export markets. The remaining herbs are mostly tropical lowland species that play a role in native medicine. Phytochemical data for Aerides, Agrostophyllum, Anoectochilus and Arundina are presented.
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562 citations
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.
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TL;DR: Moscatilin, a new bibenzyl derivative isolated from the orchid Dendrobium moscatum, was shown to have the structure 4,4′-dihydroxy-3,3′,5-trimethoxybibensyl.
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TL;DR: An amorphous phenanthrene, named nudol has been isolated from Eulophia nuda, Eria carinata and E. stricta and was identified as 2,7-dihydroxy-3,4-dimethoxyphenanthrene.
74 citations
TL;DR: Two new polyoxygenated phenanthrene derivatives, confusarin and confusaridin, are isolated from the orchid Eria confusa and are shown to be 2,7-dihydroxy-3,4,8-trimethoxyphenanthrene and 2,6- dihydrox-2,6,7, 8-tetramethoxyrene, respectively.
46 citations