Patent ID: 7005426
Filing Date: 2006-02-28
Classification: A61K,A61P,C08B

Abstract:
1. A folic acid-polysaccharide complex, characterizing in that it has the following general formula: (X)n-Y, wherein X is identical or different, and is selected from the group consisting of folic acid, folinic acid, dihydrofolic acid, tetrahydrofolic acid, tetrahydropterin, pteroyl-polyglutamic acid, 2-deamino-hydroxy-folic acid, 1-denitrofolic acid, 3-denitrofolic acid, 8-denitrofolic acid; and Y is a polysaccharide other than arabinogalactan selected from glucans, dextrans, polysaccharoses, frustosans, heteropolysaccharides, mono- or heteropolysaccharide sulfates, mono- or heteropolysaccharide polysaccharides, ginseng pectin polysaccharide and other pectic polysaccharides, gummi tragacanthae, gumghatti, alginate, mono- or hetero-glycuronate-polysaccharides, polyethylene oxide, methoxypolyethylene glycol, and hydrophilic alcoholic polymers; and n≧1; wherein said folic acid-polysaccharide complex enters into cell via the pathway of the folic acid receptor on the cell membrane.