Quebrachitol

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quebrachitol
Chemical structure of L-quebrachitol
Names
IUPAC name
(1R,2S,4S,5R)-6-methoxycyclohexane-1,2,3,4,5-pentol
Other names
Quebrachitol
L-Quebrachitol
(-)-Quebrachitol
2-O-methyl-l-inositol
2-0-methyl-chiro-inositol
Identifiers
642-38-6 N=
ChEMBL ChEMBL501109 YesY
ChemSpider 10254652 YesY
Jmol 3D model Interactive image
PubChem 151108
  • InChI=1S/C7H14O6/c1-13-7-5(11)3(9)2(8)4(10)6(7)12/h2-12H,1H3/t2-,3-,4-,5+,6+,7-/m0/s1 YesY
    Key: DSCFFEYYQKSRSV-FIZWYUIZSA-N YesY
  • CO[C@H]1[C@@H]([C@H]([C@@H]([C@@H]([C@H]1O)O)O)O)O
Properties
C7H14O6
Molar mass 194.18 g/mol
Appearance White to off-white powder
Melting point 190 to 198 °C (374 to 388 °F; 463 to 471 K)
Soluble in DMSO, dimethyl formamide, or water
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
Infobox references

Quebrachitol is a naturally occurring optically active cyclitol, a cyclic polyol. It can be found in Allophylus edulis[1] and in the serum left after the coagulation of the Hevea brasiliensis latex in the operation of rubber tapping.[2] It is also found in Cannabis sativa,[3] in Paullinia pinnata and in seabuckthorn.[4]

It was first isolated by Tanret in 1887 from the bark of Aspidosperma quebracho. The substance was tested as a sweetening agent for diabetics in 1933. It shows a sweetening property half of that of sucrose but induces colic or diarrhoea at concentration used to render the food palatable.[5]

Quebrachitol is a versatile building block in the construction of naturally occurring bioactive materials.[6] For example, its conversion into antifungal (E)-β-methoxyacrylate, oudemansin X has been made.[7]

References

  1. ↑ First record of l-quebrachitol in Allophylus edulis (Sapindaceae). Martina Díaz, Andrés González, Ian Castro-Gamboa, David Gonzalez and Carmen Rossini, Carbohydrate Research, Volume 343, Issue 15, 13 October 2008, Pages 2699-2700, doi:10.1016/j.carres.2008.07.014
  2. ↑ Quebrachitol. Jan van Alphen, Ind. Eng. Chem., 1951, 43 (1), pp 141–145, doi:10.1021/ie50493a041
  3. ↑ 1955 - ACTA UNIVERSITATIS PALACKIANAE OLOMUCENSIS - TOM. VI. - HEMP AS A MEDICAMENT, Properties of isolated substances. Prof. Jan Kabelik, A brief survey of the methods of isolation and the physical and chemical properties and structures of the isolated antibacterial substances. F. Santavy & Z. Krejci
  4. ↑ Some new data about antiviral and related activities of seabuckthorn principals and the prospects of their use. Shipulina L.D., All-Russian Research Institute of Medicinal and Aromatic Plants, Moscow, Russia
  5. ↑ An investigation of quebrachitol as a sweetening agent for diabetics. Robert Alexander McCance and Robert Daniel Lawrence, Biochem J. 1933; 27(4): 986–989
  6. ↑ Quebrachitol: A Versatile Building Block in the Construction of Naturally Occurring Bioactive Materials. James J. Kiddle, Chem. Rev., 1995, 95 (6), pp 2189–2202, doi:10.1021/cr00038a016
  7. ↑ Total synthesis of antibiotic (−)-oudemansin X utilizing L-quebrachitol as a chiral pool. Chida N., Yamada K. and Ogawa S., Chemistry Letters, 1992, no4, pp. 687-690

External links

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