7-glycosyloxybenzopyran derivative and antiallergic agent...

Details 7-glycosyloxybenzopyran derivative and antiallergic agent... 7-glycosyloxybenzopyran derivative and antiallergic agent...

C - Chemistry, Metallurgy

07

H

C07H 15/26 (2006.01) A61K 31/70 (2006.01) C07H 17/075 (2006.01)

Patent

CA 2149826

A 7-glycosyloxybenzopyran derivative represented by the following formula (see formula (I)) wherein, R1 is a hydrogen atom, an acyl group, an alkyl group, a cycloalkyl group, an alkenyl group or an aralkyl group, R2 is a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group or an aralkyl group and R3 is a glycosyl group whose hydroxyl group is protected or not protected, selected from the group consisting of glucosyl, mannosyl and galactosyl groups, and physiologically acceptable salts thereof.

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