Patent ID: 6541614
Filing Date: 2003-04-01
Classification: A61K,A61Q,C08B

Abstract:
A polysaccharide derivative comprising a polysaccharide, or a derivative thereof, wherein a part or all of the hydrogen atoms of the hydroxyl groups of the polysaccharide, or the derivative thereof, are replaced with substituent group (A)(A) a group represented by the following formula: â€”E1â€”(OA)nâ€”E2â€”Râ€ƒâ€ƒ(1) wherein E1 represents a linear or branched, divalent, saturated C1-6 hydrocarbon group which may be substituted with one or more hydroxyl groups or oxo groups, n represents a number of from 8 to 300, n numbers of As may be the same or different and each independently represents a linear or branched, divalent, saturated C1-6 hydrocarbon group, E2 represents an ether bond or an oxycarbonyl group (â€”OCOâ€” or â€”COOâ€”), and R represents a linear or branched C4-30 alkyl group which may be substituted with one or more hydroxyl groups, wherein, the hydrogen atom(s) of one or more hydroxy groups in said substituent groups (A) may be further replaced with said substituent groups (A); and wherein the degree of substitution of the polysaccharide, or the derivative thereof, with the substituent group (A) is 0.0005 to 0.5 per constituent monosaccharide residual group.