A series of substituted imidazolyl biphenyl sulfonylureas have been sy
nthesized. Substitution on the imidazole ring but essentially on the u
rea side chain significantly increased AT(2) binding with cyclohexylme
thyl, cyclopentylmethyl and benzyl as the most effective substituents.
Imidazole 13d, as a representative member of this series, displayed n
anomolar binding affinity for both the AT(1) and AT(2) angiotensin II
receptor subtypes as well as oral activity.