| abstract |
(57) [Summary] [Objective] To obtain a novel compound which is non-toxic and has aldose reductase inhibitory activity. [Structure] Expression [However, at least one of Y 1 , Y 2 and Y 3 is NH—R (R represents an alkyl group, an allyl group or a benzyl group), and the other is OH or OR (R is an alkyl group, Represents an allyl group or a benzyl group). ] The oxazo pyrrolo quinoline compound shown by these. |