2013
DOI: 10.1080/10286020.2013.764868
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New dimeric phenanthrene and flavone fromSpiranthes sinensis

Abstract: From the whole plant of Spiranthes sinensis, one novel dimeric phenanthrene, 2,2'-dihydroxy-5,5',7,7'-tetramethoxy-9,9',10,10'-tetrahydro-3,3'-biphenanthrene (1) and flavone 5-hydroxy-3,7-dimethoxy-4'-(1-hydroxy-3-methylbut-3-en-2-yloxy)-flavone (2) were isolated along with three other known flavonoids, which are reported for the first time from this species. Their structures were established after an extensive analysis by 1D and 2D NMR spectroscopy (NOESY, HSQC, and HMBC) as well as HR-TOF-MS.

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Cited by 14 publications
(8 citation statements)
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“…Most of the dimers isolated from the family Orchidaceae are considered to be formed by the coupling of the commonly occurring monomers of Orchidaceae species, e.g., lusianthridin ( 172 , 175 , 176 , 179 , 181 , 190 , 196 – 199 ), ,,,,,, lusianthrin ( 198 , 199 , 212 ), coelonin ( 171 , 172 , 178 , 189 , 191 , 193 – 195 ), ,,, 6-methoxycoelonin ( 186 , 188 ), , flavanthrinin ( 191 , 192 , 206 – 208 ), ,, orchinol ( 182 ), nudol ( 186 , 196 , 197 , 205 , 209 , 210 ), ,,, and 2-hydroxy-4,7-dimethoxyphenathrene ( 187 – 190 , 193 – 195 , 209 , 211 ). ,, Monbarbatains B ( 198 ) and C ( 199 ) are both derived by the coupling of lusianthridin with lusianthrin and differ only in the positions of their linkages . In the case of compound 207 , the recently isolated aerosanthrene ( 89 ) serves as a monomer. , Symmetrical dimers can also be found among the isolated compounds of Orchidaceae species, for example, in a diphenanthrene ( 170 ) obtained from Bletilla yunnanensis , in which two O -methylorchinol monomers are linked at C-1 and C-1′ .…”
Section: Compound Structural Diversity and Biological Activitymentioning
confidence: 99%
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“…Most of the dimers isolated from the family Orchidaceae are considered to be formed by the coupling of the commonly occurring monomers of Orchidaceae species, e.g., lusianthridin ( 172 , 175 , 176 , 179 , 181 , 190 , 196 – 199 ), ,,,,,, lusianthrin ( 198 , 199 , 212 ), coelonin ( 171 , 172 , 178 , 189 , 191 , 193 – 195 ), ,,, 6-methoxycoelonin ( 186 , 188 ), , flavanthrinin ( 191 , 192 , 206 – 208 ), ,, orchinol ( 182 ), nudol ( 186 , 196 , 197 , 205 , 209 , 210 ), ,,, and 2-hydroxy-4,7-dimethoxyphenathrene ( 187 – 190 , 193 – 195 , 209 , 211 ). ,, Monbarbatains B ( 198 ) and C ( 199 ) are both derived by the coupling of lusianthridin with lusianthrin and differ only in the positions of their linkages . In the case of compound 207 , the recently isolated aerosanthrene ( 89 ) serves as a monomer. , Symmetrical dimers can also be found among the isolated compounds of Orchidaceae species, for example, in a diphenanthrene ( 170 ) obtained from Bletilla yunnanensis , in which two O -methylorchinol monomers are linked at C-1 and C-1′ .…”
Section: Compound Structural Diversity and Biological Activitymentioning
confidence: 99%
“…Homodimers of lusianthridin, named phochinenin G ( 176 ) and phoyunnanin C ( 181 ), have also been reported. , Monbarbatain A ( 212 ) is a 1,1′-linked dimer of lusianthrin and its unsaturated form, lusianthridin . Compound 182 is a symmetrical 3,3′-linked homodimer of orchinol …”
Section: Compound Structural Diversity and Biological Activitymentioning
confidence: 99%
“…Column chromatography of the EtOAc fraction led to the isolation of five known and six novel dihydrophenanthrenes [10]. The traditional Chinese medicine 'Panlongshen' is derived from the dried root or the whole plant of S. sinensis, which is an Orchidaceae plant [15].…”
Section: Anti-hepatoma Cellmentioning
confidence: 99%
“…Therefore, isolation of anti-adipogenic compounds from medicinal plants can provide therapeutic and preventive strategies for the development of new applications. S. sinensis contains various types of bioactive compounds, such as phenanthrenes, flavonoids, coumarins, and steroids [ 13 , 14 , 15 , 16 ]. Among them, phenanthrene is the major chemical component [ 16 , 17 ].…”
Section: Introductionmentioning
confidence: 99%