Chemistry:Arecatannin

From HandWiki
Arecatannin A1
Chemical structure of arecatannin A1.
Chemical structure of arecatannin A1.
Names
IUPAC name
(2R,3R,4S)-2-(3,4-dihydroxyphenyl)-4-[(2R,3S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-8-yl]-8-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol
Other names
  • Procyanidin T2
  • (-)-Epicatechin-(4β→8)-(-)-epicatechin-(4β→8)-(+)-catechin
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
KEGG
Properties
C45H38O18
Molar mass 866.77 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Arecatannin A2
Chemical structure of arecatannin A2.
Chemical structure of arecatannin A2.
Names
IUPAC name
(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-4-[(2R,3R,4S)-2-(3,4-dihydroxyphenyl)-4-[(2R,3S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-8-yl]-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-8-yl]-8-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol
Other names
  • (-)-Epicatechin-(4β→8)-(-)-epicatechin-(4β→8)-(-)epicatechin-(4β→8)-(+)-catechin
Identifiers
3D model (JSmol)
ChEBI
KEGG
Properties
C60H50O24
Molar mass 1155.03 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Arecatannin A3
Chemical structure of arecatannin A3.
Chemical structure of arecatannin A3.
Names
Other names
  • (2R,2′R,2′′R,2′′′R,2′′′′R,3R,3′R,3′′R,3′′′R,3′′′′S,4R,4′R,4′′R,4′′′S)-2,2′,2′′,2′′′,2′′′′-pentakis(3,4-dihydroxyphenyl)-3,3′,3′′,3′′′,3′′′′,4,4′,4′′,4′′′,4′′′′-decahydro-[4,8′:4′,8′′:4′′,8′′′:4′′′,8′′′′-quinque-2H-1-benzopyran]-3,3′,3′′,3′′′,3′′′′,5,5′,5′′,5′′′,5′′′′,7,7′,7′′,7′′′,7′′′′-pentadecol
  • (-)-Epicatechin-(4β→8)-(-)epicatechin-(4β→8)-(-)epicatechin-(4β→8)-(-)epicatechin-(4β→8)-(+)-catechin
Identifiers
3D model (JSmol)
KEGG
Properties
C75H62O30
Molar mass 1443.28 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Arecatannin B1
Chemical structure of arecatannin B1.
Chemical structure of arecatannin B1.
Names
IUPAC name
(2R,3R,4S)-2-(3,4-dihydroxyphenyl)-4-[(2R,3S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-6-yl]-8-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol
Other names
  • (-)-Epicatechin-(4β→8)-(-)-epicatechin-(4β→6)-(+)-catechin
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
KEGG
UNII
Properties
C45H38O18
Molar mass 866.77 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Arecatannin B2
Chemical structure of arecatannin B2.
Chemical structure of arecatannin B2.
Names
IUPAC name
(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-4-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-4-[(2R,3R,4S)-2-(3,4-dihydroxyphenyl)-4-[(2R,3S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-6-yl]-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-8-yl]-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-8-yl]-8-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol
Other names
  • (-)-Epicatechin-(4β→8)-(-)-epicatechin-(4β→8)-(-)-epicatechin-(4β→8)-(-)-epicatechin-(4β→6)-(+)-catechin
Identifiers
3D model (JSmol)
KEGG
Properties
C75H62O30
Molar mass 1443.28 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Arecatannin C1
Chemical structure of arecatannin C1.
Chemical structure of arecatannin C1.
Names
IUPAC name
(2R,3S,4R)-2-(3,4-dihydroxyphenyl)-4-[(2R,3S)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-8-yl]-8-[(2R,3R,4R)-2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxy-3,4-dihydro-2H-chromen-4-yl]-3,4-dihydro-2H-chromene-3,5,7-triol
Other names
  • Procyanidin C4
  • (-)-Epicatechin-(4β→8)-(+)-catechin-(4α→8)-(+)-catechin
Identifiers
3D model (JSmol)
KEGG
Properties
C45H38O18
Molar mass 866.77 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Short description: Group of chemical compounds

Arecatannins are a class of condensed tannins in the sub-class procyanidins contained in the seeds of Areca catechu also called betel nut.[1] The arecatannin-type natural products from Ceylonese cassia bark and Areca seed are examples of polyphenols by both current definitions, and fit the distinct definition of a polymeric phenol as well.[2]

Known molecules

The following six known arecatannins have been detected in A. catechu seeds.[3][4]

  • Arecatannin A1
  • Arecatannin A2
  • Arecatannin A3
  • Arecatannin B1
  • Arecatannin B2
  • Arecatannin C1

References

  1. Screening of various plant extracts used in ayurvedic medicine for inhibitory effects on human immunodeficiency virus type 1 (HIV-1) protease. Ines Tomoco Kusumoto, Takeshi Nakabayashi1, Hiroaki Kida, Hirotsugu Miyashiro, Masao Hattori, Tsuneo Namba and Kunitada Shimotohno, Phytotherapy Research, Volume 9, Issue 3, May 1995, pp. 180–184, doi:10.1002/ptr.2650090305
  2. "Isolation and structure elucidation of tannins. G. Nonaka, Pure & Appl. Chem.,Vol. 61, No. 3, pp. 357–360, 1989.". http://www.iupac.org/publications/pac/1989/pdf/6103x0357.pdf. 
  3. "KEGG DRUG: Areca". https://www.genome.jp/dbget-bin/www_bget?dr:D06782. 
  4. Peng, Wei; Liu, Yu-Jie; Wu, Na; Sun, Tao; He, Xiao-Yan; Gao, Yong-Xiang; Wu, Chun-Jie (April 2015). "Areca catechu L. (Arecaceae): A review of its traditional uses, botany, phytochemistry, pharmacology and toxicology". Journal of Ethnopharmacology 164: 340–356. doi:10.1016/j.jep.2015.02.010.