Polysaccharide polyol

Details Polysaccharide polyol Polysaccharide polyol

1984-03-08

1987-01-27

Brown, Johnnie R.

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

Organic compounds

Carbohydrates or derivatives

536 11, C08B 3700

Patent

active

046395164

ABSTRACT:
Described is a polysaccharide polyol derived from Volvariella volvacea, which is comprised of the following three types of recurring units. ##STR1## wherein D-Glu is D-glucopyranosyl residue, each number represents the linkage position, X is HOCH.sub.2 CH(CH.sub.2 OH)--O--CH(CH.sub.2 OH)--O--[Formula A] or D-glucopyranosyl and Y is --CH.sub.2 --CH(CH.sub.2 OH)--O--CH(CH.sub.2 OH)--O-- or D-glucopyranosyl, at least a part of X in the recurring units II and III is that of formula A, and, the average number of III is about 4-12 and the average number of the sum II and III is about 16-23, per 100 of the sum of I, II and III. The polysaccharide is prepared by extracting Volvariella volvacea with an aqueous alkali solution and oxidizing and then reducing the soluble fraction to cut parts of C--C bonds of side chains. The polysaccharide is useful and an anti-tumor agent.

REFERENCES:
patent: 3691153 (1972-09-01), Vemuri
patent: 4454289 (1984-06-01), Nakajima et al.
patent: 4511559 (1985-04-01), Szendrei et al.
Migrdichian, Organic Synthesis, vol. 1, pp. 61-62, 1957.
Chemical Abstracts, vol. 101, p. 56, No. 101:33216g, 1984.

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