| abstract |
(57) [Summary] [Structure] General Formula (I) (R 1 is H, an alkyl group, an alkenyl group, an aralkyl group or an acyl group, R 2 is H, an alkyl group or an acyl group, R 3 Is a novel compound represented by a glycosyl group, a mannosyl group or a galactosyl group, and an antiallergic agent containing it as an active ingredient. [Effect] A novel substance useful as a drug and a highly safe drug having an excellent antiallergic action are provided. it can. |