The trifluoromethanesulfonamidophenyl-substituted quinoline GA 0113 have been synthesized from o-nitrobenzoyl chloride via a multi-step process. GA 0113 displaced specific binding of [125I]-Sar1, Ile8-Ang II to AT1 receptors in membrane from Sf9 cells. In concious normotensive dogs, GA 0113 inhibited the Ang II-induced pressor response with ID50 of 0.032 mg/kg and dose-dependently increased plasma renin activity for 48h.