| abstract |
PROBLEM TO BE SOLVED: To provide a novel agent for preventing and treating angiopathic cerebral edema, which can effectively act on an affected part in a safe and small dose to prevent and treat angiopathic cerebral edema. SOLUTION: The following general formula (1): [In the formula, R 1, R 2, R 3 and R 4 represent the same or different hydrogen atom or a lower alkyl group, R 5 Represents a hydrogen atom, a lower alkyl group or a lower acyl group, and X represents a monosaccharide residue or an oligosaccharide residue in which a hydrogen atom of a hydroxyl group in a sugar residue may be substituted with a lower alkyl group or a lower acyl group. And n is an integer of 0 to 6, and m is an integer of 1 to 6]. The chromanol glycoside represented by the following formula: |