Difference between revisions of "Kaurane"

From WikiChem
Jump to: navigation, search
(Further reading)
(Further reading)
Line 10: Line 10:
 
*{{citation | author = Fumihiro Nagashima, Hironao Tanaka, Shigeru Takaoka and Yoshinori Asakawa | title = ''Ent''-kaurane-type diterpenoids from the liverwort ''Jungermannia exsertifolia'' ssp. ''cordifolia'' | journal = Phytochemistry | volume = 41 | issue = 4 | year = 1996 | pages = 1129–41 | doi = 10.1016/0031-9422(95)00755-5}}.
 
*{{citation | author = Fumihiro Nagashima, Hironao Tanaka, Shigeru Takaoka and Yoshinori Asakawa | title = ''Ent''-kaurane-type diterpenoids from the liverwort ''Jungermannia exsertifolia'' ssp. ''cordifolia'' | journal = Phytochemistry | volume = 41 | issue = 4 | year = 1996 | pages = 1129–41 | doi = 10.1016/0031-9422(95)00755-5}}.
 
*{{citation | author = Ronan Batista; Pablo A. García; Maria A. Castro; José M. Miguel del Corral; Arturo San Feliciano; Alaíde B. de Oliveira | title = New oxidized ''ent''-kaurane and ''ent''-norkaurane derivatives from kaurenoic acid | journal = J. Braz. Chem. Soc. | volume = 18 | issue = 3 | year = 2007 | pages = 622–27 | doi =  10.1590/S0103-50532007000300020}}.
 
*{{citation | author = Ronan Batista; Pablo A. García; Maria A. Castro; José M. Miguel del Corral; Arturo San Feliciano; Alaíde B. de Oliveira | title = New oxidized ''ent''-kaurane and ''ent''-norkaurane derivatives from kaurenoic acid | journal = J. Braz. Chem. Soc. | volume = 18 | issue = 3 | year = 2007 | pages = 622–27 | doi =  10.1590/S0103-50532007000300020}}.
 +
*{{citation | title = Three New Cytotoxic ''ent''-Kaurane Diterpenoids from ''Isodon weisiensis'' C. Y. Wu | author = Z.-J. Zhang, L. Ding | journal = Helv. Chim. Acta | volume = 88 | issue = 9 | year = 2005 | pages = 2502–7}}.
 +
*{{citation | author = NAGASHIMA Fumihiro; KONDOH Masuo; UEMATSU Toshinari; NISHIYAMA Akiko; SAITO Sayaka; SATO Masao; ASAKAWA Yoshinori | title = Cytotoxic and apoptosis-inducing ''ent''-kaurane-type diterpenoids from the Japanese liverwort ''Jungermannia truncata'' nees | journal = Chem. Pharm. Bull. | year = 2002 | volume = 50 | issue = 6 | pages = 808–13}}.
 +
*{{citation | title = 16α,19-Diacetoxy-''ent''-kaurane, a New Natural Diterpene from the Exudate of ''Ozothamnus scutellifolius'' (Asteraceae) | author = Fco. Javier Arriaga-Giner, Angel Rumbero and Eckhard Wollenweber | journal = Z. Naturforsch. | volume = 54c | pages = 602–4 | year = 1999}}.
 +
*{{citation | title = Kaurane Diterpenoids from Three ''Sideritis'' Species | url = http://journals.tubitak.gov.tr/chem/issues/kim-05-29-1/kim-29-1-7-0402-1.pdf | author = Maurizio BRUNO, Franco PIOZZI Nelly Apostolides ARNOLD, K. H¨usn¨u Can BAS�ER3, Nurhayat TABANCA, Ne�se KIRIMER | journal = Turk. J. Chem. | volume = 29 | year = 2005 | pages = 61–64}}.
 +
 +
==External links==
 +
*[http://chemistry.about.com/od/factsstructures/ig/Chemical-Structures---K/Kaurane.-0xj.htm Kaurane Chemical Structure] (shows the IUPAC conventional structure)
 +
*[http://www.find-health-articles.com/msh-diterpenes-kaurane.htm Diterpenes, Kaurane – Research News and Information]
  
 
[[Category:Diterpenes]]
 
[[Category:Diterpenes]]

Revision as of 09:51, 5 September 2009

Kaurane is a parent hydride used in the IUPAC nomenclature of natural products and also, distinctly, in CAS nomenclature. It is a diterpene with a rigid four-ring structure and six chiral centres.

The stereochemistry of the six chiral centres is defined by convention: however, IUPAC and CAS use different conventional stereochemistry, which also leads to a slight difference in numbering between the two systems. IUPAC conventional kaurane has (5S,8S,9S,10S,13S,15R)-stereochemistry, and is drawn with the five-membered ring receding into the plane of the image.[1] CAS conventional kaurane has (5S,8R,9S,10S,13R,15R)-stereochemistry, and is drawn with the five-membered ring protruding from the plane of the image.[2] Carbon-19 (one of the two methyl groups attached to carbon-4) is on the same side of the molecule as the five-membered ring in both systems: hence it is receding into the plane of the image in IUPAC nomenclature and protruding from the plane of the image in CAS nomenclature.

References

Further reading

External links

Error creating thumbnail: Unable to save thumbnail to destination
This page is currently licensed under the Creative Commons Attribution 3.0 Unported license and any later versions of that license.