Pinosylvin

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Pinosylvin
IUPAC name

5-[(E)-2-Phenylethenyl]benzene-1,3-diol

Other names

(E)-3,5-Stilbenediol
trans-3,5-Dihydroxystilbene

Identifiers
CAS number 102-61-4 YesY
PubChem 5280457
ChEMBL CHEMBL101506 N
Jmol-3D images Image 1
Properties
Molecular formula C14H12O2
Molar mass 212.244 g/mol
Melting point 153–155 °C
 N (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
Infobox references

Pinosylvin is a pre-infectious stilbenoid toxin (i.e. synthesized prior to infection), contrary to phytoalexins which are synthesized during infection. It is present in the heartwood of Pinaceae.[1] It is a fungitoxin protecting the wood from fungal infection.[2] It is also found in Gnetum cleistostachyum.[3]

Injected in rats, pinosylvin shows a rapid glucuronidation and a poor bioavailability.[4]

Biosynthesis

Pinosylvin synthase is an enzyme that catalyzes the chemical reaction 3 malonyl-CoA + cinnamoyl-CoA → 4 CoA + pinosylvin + 4 CO2

This biosynthesis is noteworthy because plant biosyntheses employing cinnamic acid as a starting point are rare compared to the more common use of p-coumaric acid. Only a few identified compounds, such as anigorufone and curcumin, use cinnamic acid as their start molecule.[5][6]

References

  1. ↑ Screening Analyses of Pinosylvin Stilbenes, Resin Acids and Lignans in Norwegian Conifers. Hanne Hovelstad, Ingebjorg Leirset, Karin Oyaas and Anne Fiksdahl, Molecules, 2006, 11(1), pages 103-114, doi:10.3390/11010103
  2. ↑ Antibacterial and antifungal activity of pinosylvin, a constituent of pine. S.K. Lee, H.J. Lee, H.Y. Min, E.J. Park, K.M. Lee, Y.H. Ahn, Y.J. Cho and J.H. Pyee, Fitoterapia, Volume 76, Issue 2, March 2005, Pages 258–260, doi:10.1016/j.fitote.2004.12.004
  3. ↑ Stilbenes from Gnetum cleistostachyum. Yao Chun-Suo, Lin Mao, LIiu Xin and Wang Ying-Hong, Huaxue xuebao, 2003, volume 61, no 8, pages 1331-1334, INIST:15332136
  4. ↑ Pharmacokinetics of selected stilbenes: rhapontigenin, piceatannol and pinosylvin in rats. Kathryn A. Roupe, Jaime A. Yáñez, Xiao Wei Teng and Neal M. Davies, Journal of Pharmacy and Pharmacology, November 2006, Volume 58, Issue 11, pages 1443–1450, doi:10.1211/jpp.58.11.0004
  5. ↑ Schmitt, Bettina; Hölscher, Dirk; Schneider, Bernd (2000). "Variability of phenylpropanoid precursors in the biosynthesis of phenylphenalenones in Anigozanthos preissii". Phytochemistry 53 (3): 331–7. doi:10.1016/S0031-9422(99)00544-0. PMID 10703053. 
  6. ↑ Kita, Tomoko; Imai, Shinsuke; Sawada, Hiroshi; Kumagai, Hidehiko; Seto, Haruo (2008). "The Biosynthetic Pathway of Curcuminoid in Turmeric (Curcuma longa) as Revealed by 13C-Labeled Precursors". Bioscience, Biotechnology, and Biochemistry 72 (7): 1789. doi:10.1271/bbb.80075. 


Aglycones
Dihydroxylated
Trihydroxylated
Tetrahydroxylated
O-methylated
  • 4-Methoxyresveratrol
  • Gnetucleistol D (2-methoxyoxyresveratrol)
  • Gnetucleistol E (3-methoxy-isorhapontigenin)
  • Isorhapontigenin (3,4',5-trihydroxy-3'-methoxystilbene)
  • Pterostilbene
  • Rhapontigenin (3,3',5-trihydroxy-4'-methoxystilbene)
Combretastatins:
carboxylated
other acetylations
Glycosides
  • Astringin (Piceatannol 3-O-glucoside)
  • Foeniculoside I, II, III and IV
  • Isorhapontin (Isorhapontigenin glucoside)
  • Mulberroside A (Oxyresveratrol diglucoside)
of resveratrol
of rhapontigenin
  • Rhapontigenin 3-O-rutinoside
    • 4'-Methoxy-(E)-resveratrol 3-O-rutinoside
  • Rhaponticin (Rhapontigenin glucoside)
Oligomeric forms
  • Ampelopsin C, E and H
  • Amurensin A, B, G and H
  • Balanocarpol
  • Carasinol B
  • Dibalanocarpol
  • Diptoindonesin C
  • Diptoindonesin F
  • Flexuosol A
  • Gnetin H
  • Hemsleyanol D
  • Isohopeaphenol
  • Kobophenol A
  • Laetevirenol A, B, C, D and E
  • Malibatol A and B
  • Suffruticosol A and B
  • Vaticanol C
  • Viniferal
  • E-ω-viniferin
  • Z-ω-viniferin
Tetramers:
  • Laetevirenol F and G
of resveratrol
Dimers
Trimers
Tetramers
  • Amurensin E
  • F and K
  • Gnetuhainin R (isorhapontigenin tetramer)
  • Hopeaphenol
  • Vaticanol B
  • Vitisin A
  • B and C
  • β-viniferin (cyclic resveratrol tetramer)
Pentamers
  • Amurensin E and F
Higher polymers
  • γ-viniferin
Oligomeric forms
glycosides or conjugates
  • Diptoindonesin A
  • Laevifonol (an ε-viniferin-ascorbic acid hybrid compound)
  • Laevifoside (O-glucoside of ampelopsin A)
Synthetic
  • Stilbenoid drugs
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