NOVEL ANTHRANILIC ACID DERIVATIVES AND CHLORIDE CHANNEL BLOCKING AGENT CONTAINING THE SAME
申请人:Lee Changjoon Justin
公开号:US20090131527A1
公开(公告)日:2009-05-21
The present invention relates to novel anthranilic acid derivatives represented by Chemical Formula I, and a chloride channel blocking agent containing the anthranilic acid derivative or its pharmacologically acceptable salts as an active ingredient. In another aspect, the present invention relates to a method of accurately and efficiently detecting the intracellular chloride channel inhibition and method of screening a chloride channel blocking agent.
The decarboxylative coupling of isatoic anhydrides with arylboronic acids was realized for the first time In the presence of Pd-2(dba)(3) and DPEphos, achieving aryl o-aminobenzoates with yields ranging from moderate to good. The efficiency of this procedure was demonstrated by good compatibility with fluoro, chloro, bromo, nitro, cyano, trifluoromethyl, formacyl, acetyl, thienyl, and naphthyl groups. Preliminary mechanistic experiments using deuterium labeling showed that the oxygen atom was derived from dioxygen.