| abstract |
A class of cycloheptimidazolone compounds is described as angiotensin II antagonists for use in control of hypertension. Compounds of particular interest are those of the formula ##STR1## wherein each of R 1 and R 2 is independently selected from hydrido, alkyl, halo, alkanoyl, carboxyl, alkoxycarbonyl, phenyl, haloalkyl, alkoxyalkyl, formyl, cyano, alkoxy, phenoxy, phenylthio, alkylthio; wherein R 3 is alkyl, alkenyl, alkynyl, hydroxyalkyl and alkoxyalkyl; wherein each of R 5 through R 13 is independently selected from hydrido, alkyl, haloalkyl, halo, nitro, cyano, hydroxy, alkoxy, alkylthio, aryl, aryloxy, arythio, and acidic groups such as carboxylic acid, with the proviso that at least one of R 9 through R 13 substituents is an acidic group; or a pharmaceutically-acceptable ester, amide or salt thereof. |