Directed synthesis and pharmacological evaluation in a recently descri
bed class of alpha-phenoxyphenylacetic acid bearing angiotensin II (AI
I) receptor antagonists has afforded further potent AT(1)-selective AI
I antagonists. Substitution in the central aromatic ring significantly
increases AT(2) receptor affinity such that the n-propyl derivative 7
g displayed low nanomolar potency at both AT(1) and AT(2) receptor sub
types.