Purification of cinnamoyl-C-glyoside chromone

Details Purification of cinnamoyl-C-glyoside chromone Purification of cinnamoyl-C-glyoside chromone

1996-03-21

1997-10-07

Kight, John

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 41, 536124, 536127, C07H 108

Patent

active

056750005

ABSTRACT:
The present invention provides a process for purifying the the "540 compound." In one embodiment of the present invention the 540 compound is purified by extraction from a decolorizing agent with an organic solvent. The extracted product can be further purified by high pressure liquid chromatography. In a second embodiment crude 540 compound, which has not been treated with a decolorizing agent, is purified by passage over neutral alumina or sephadex.

REFERENCES:
patent: 4966892 (1990-10-01), McAnnalley
Hutter et al., Journal of Natural Products, vol. 59: 541-543, (1996).
Okamura et al., Phytochemistry, vol. 43(2): 495-498, (1996).
Gramatica et al. (1982) Tetrahedron Letters 23:2423-2424.
Hart et al. (1988) J. of Ethnopharmacology 23:61-71.
Holdsworth (1972) Chromones in Aloe Species, Part II--Aloesone, PM 22(1):54-58.
Holdsworth (1972) Chromones in Aloe Species, Part I--Aloesin, PM 19(4):322-325.
Speranza et al. (1985) Phytochemistry 24:1571-1573.
Speranza et al. (1986) Phytochemistry 25:2219-2222.

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