| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new tannin derivative. <P>SOLUTION: This tannin derivative is provided by substituting at least one, preferably ≥10% and more preferably ≥30% of sugar hydroxy groups in an oligosaccharide consisting of 2 to 10, and preferably 2 to 6 monosaccharide residues with an aromatic acyl group which may have a substituent on its ring (wherein, the substituent is selected from hydroxy, alkyl, alkenyl alkoxy and halogen). <P>COPYRIGHT: (C)2012,JPO&INPIT |
