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■ Synthesis and the First Structure–Activity Relationship Study of Imidazole Alkaloid from Red Ascidian as Aldose Reductase Inhibitors

Kenta Morikawa, Sota Uno, Shoko Higashi, Masaru Goto, and Ryota Saito*

*Department of Chemistry, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan

Abstract

We synthesized a series of 2-aroyl-4-aryl-1H-imidazoles (2 and 3) and evaluated their in vitro AR inhibitory activity for the first time. We observed improved activities with derivatives having multiple catechol moieties.