123021-36-3

[[6,7-dimethoxy-1-[(4-oxo-2-thioxo-5-thiazolidinylidene)methyl]-2-naphthalenyl]oxy]-acetic Acid is used in biological activities in the preparation and aldose reductase inhibitory activity of a new series of 5-[[2-(ω-carboxyalkoxy)aryl]methylene]-4-oxo-2-thioxothiazolidine derivatives.