More than 100 5-substituted thiazolidine-2, 4-diones were prepared and their hypoglycemic and hypolipidemic activities were evaluated with genetically obese and diabetic mice, yellow KK. The structure-activity relationship study showed that the 5-(4-oxybenzyl) moiety is essential for substantial activity. Among these compounds, 5-(4-cyclohexylmethoxy) benzylthiazolidine-2, 4-dione (47), 5-[4-(1-methylcyclohexylmethoxy) benzyl]-thiazolidine-2, 4-dione (49, ADD-3878) and 5-4-[2-(3-pyridyl) ethoxy] benzyl} thiazolidine-2, 4-dione (59) exhibited the most favorable properties in terms of activity and toxicity.
Aryl Ether Syntheses via Aromatic Substitution Proceeding under Mild Conditions
作者:Shin Ando、Marina Tsuzaki、Tadao Ishizuka
DOI:10.1021/acs.joc.0c01250
日期:2020.9.4
In this study, mild conditions for aromatic substitutions during the syntheses of aryl ethers were developed. In the reaction conditions, the choices of solvent, base, and the sequence for the addition of the reagents proved important. A wide variety of alcohols were used directly as nucleophiles and smoothly reacted with aryl chlorides that possessed either a nitro or a cyano group at either the ortho-