摘要:
The present invention relates to novel tocopheryl oligosaccharides, acylated tocopheryl oligosaccharides, sulfated tocopheryl oligosaccharides, and antiviral agents including the sulfated tocopheryl oligosaccharides as active ingredients. In the tocopheryl oligosaccharide, the hydrogen atom of the hydroxy group at the 1-position in the terminal sugar moiety of an oligosaccharide which consists of 3 ∼ 20 of identical or different repeating monosaccharide units selected from the group consisting of glucose, galactose, mannose, talose, idose, altrose, allose, glucose, xylose, arabinose, rhamnose, fucose, and fructose, which are glycoside-linked, is substituted by a tocopherol group. In the acylated tocopheryl oligosaccharides, each of any hydroxy group of the sugar moiety, other than the hydroxy group at the 1-position in the terminal sugar moiety of the oligosaccharide described above, is protected by an acyl group. The antiviral agents including the sulfated tocopheryl oligosaccharides or the biologically acceptable salt of the same as active ingredients have low toxicities and exhibit improved antiviral action, especially against the Human Immunodeficiency Virus.
摘要:
A sulfated oligoglycoside acylate comprising monosaccharides of a single or two kinds as the constituents, wherein the hydrogen in the hydroxyl group at the 1-position of a reducing end sugar of the oligosaccharide formed via the glycoside bond of these monosaccharides has been substituted with an aglycon selected from a group consisting of alkyl groups, aromatic alkyl groups, aromatic alkoxy groups and tocopheryl groups ; from 12 to 80 % of the residual hydroxyl groups have been acylated with an acyl group selected from a group consisting of aliphatic acyl groups and aromatic acyl groups ; and 88 to 20 % thereof have been sulfated ; or a physiologically acceptable salt thereof provided that compounds wherein the aglycon is an alkyl group and the acyl group is an aliphatic acyl group are excluded is disclosed. Further, an antiviral agent, which exerts a long-lasting antiviral action particularly on HIV, containing said compound as an active ingredient is disclosed.
摘要:
A oligosaccharide aromatic glycoside sulfate or a physiologically acceptable salt of the same which is formed from same or different monosaccharides bonded by glycoside bonds, wherein the hydrogen atom in the hydroxyl group at the position-1 carbon atom at the terminal of the oligosaccharide is substituted with a group represented by Formula (I): - Y - (O) n - R (I) (in the formula, R represents an alkyl group having 1-18 carbon atoms, n is 0 or 1, O represents an oxygen atom, and Y represents an allylene group) and at least 10% of the remaining hydroxyl groups of the sugar subunits have been subjected to sulfated esterification; an anti-viral agent containing this oligosaccharide aromatic glycoside sulfate or physiologically acceptable salt of the same as an active component; and a oligosaccharide aromatic glycoside which functions as a production intermediate are disclosed. The anti-viral agent exhibits low toxicity and superior anti-viral activity, and is especially effective against viruses which are known to cause AIDS.
摘要:
A oligosaccharide aromatic glycoside sulfate or a physiologically acceptable salt of the same which is formed from same or different monosaccharides bonded by glycoside bonds, wherein the hydrogen atom in the hydroxyl group at the position-1 carbon atom at the terminal of the oligosaccharide is substituted with a group represented by Formula (I):
- Y - (O) n - R (I)
(in the formula, R represents an alkyl group having 1-18 carbon atoms, n is 0 or 1, O represents an oxygen atom, and Y represents an allylene group) and at least 10% of the remaining hydroxyl groups of the sugar subunits have been subjected to sulfated esterification; an anti-viral agent containing this oligosaccharide aromatic glycoside sulfate or physiologically acceptable salt of the same as an active component; and a oligosaccharide aromatic glycoside which functions as a production intermediate are disclosed. The anti-viral agent exhibits low toxicity and superior anti-viral activity, and is especially effective against viruses which are known to cause AIDS.