Ochrolic acid, a precursor to phenanthropyrones, from Coelogyne ochracea
TL;DR: In this paper, a phenanthrene carboxylic acid was found in Coelogyne ochracea, a possible precursor of phenanthropyrones and pyrans.
About: This article is published in Phytochemistry.The article was published on 1994-08-01. It has received 15 citations till now. The article focuses on the topics: Phenanthrene & Carboxylic acid.
Citations
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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.
282 citations
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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.
Abstract: Stilbenoids are formed by a particular branch of the flavonoid biosynthetic pathway. They are of special interest to natural product researchers for their roles in plant resistance to fungal pathogens and their biological effects. This review in the volume of Bioactive Natural Products provides a comprehensive account of the occurrence, chemistry, biological roles and activities of the stilbenoids. Nearly 800 stilbenoids, isolated from natural sources in the recent 12 years, are grouped into structural types and discussed in terms of their reported pharmacological activity. The major groups of stilbenoids which are discussed in detail include stilbenes, bibenzyls, bisbibenzyls, phenanthrenoids, stilbene oligomers etc. Detailed tables and figures list the occurrence of stilbenoids in major plant species, and methods used for extracting and analyzing stilbenoids are discussed. Biosynthetic pathways and chemical synthesis are reviewed and the biological activities of stilbenoids are also addressed. The coverage of the new structures is from 1994 to 2006.
75 citations
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TL;DR: In this article, a new phenanthropyran derivative was isolated from the whole plant of Vanda parviflora, and its structure was elucidated as 2,6-dihydroxy-8-methoxy-9,10-Dihydrophenthropyran on the basis of spectroscopic data.
14 citations
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TL;DR: In this article, a new phenanthropyran derivative was isolated from the whole plant of Aerides crispum, and its structure was elucidated as 2,7-dihydroxy-1,3-dimethoxy-9,10-Dihydrophenthrophenthropyran on the basis of spectroscopic data.
13 citations
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TL;DR: In this paper, a new phenanthropyran derivative was isolated from the whole plant of Vanda tessalata, and its structure was elucidated as 3,7-dihydroxy-2-methoxy-9,10-diphydrophenanthroprin.
10 citations
References
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TL;DR: In a survey of 26 species from nine genera of the Orchidaceae, batatasin-III was found to be the most common constituent in the subtribes Coelogyninae, Dendrobiinee, Bulbophyllinae and Bletiinee and absent in other subtribes Laeliinaes and Sarcanthinae.
31 citations
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TL;DR: Two new 1,4-phenanthraquinones, ochrones A and B from the orchid, Coelogyne ochracea, have been established from spectroscopic evidence.
Abstract: The structures of two new 1,4-phenanthraquinones, ochrones A [1] and B [2] from the orchid, Coelogyne ochracea, have been established from spectroscopic evidence
23 citations
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TL;DR: The structure of a 9,10,dihydro-5H-phenanthro-(4,5-b, c, d )-pyran, amoenumin, from the orchid Dendrobium amoenum has been established on the basis of spectral data.
21 citations
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TL;DR: The structure of ochrolide, 2,6-dihydroxy 7,8-dimethoxyphenanthro(4,5- bcd )pyran-5 one, isolated from the orchid Coelogyne ochracea has been established from spectroscopic evidence.
12 citations