This invention provides novel phenyl and heterocyclic derivatives, their pharmaceutical formulations and their methods of use for antagonizing angiotensin II receptors in mammals.
This invention provides the substantially pure (R) enantiomer of a compound of the Formula II: ##STR1## The compounds of Formula II are useful in the preparation of the substantially pure (R) enantiomer of angiotensin II antagonists of Formula III: ##STR2## wherein R.sub.1, Ar, R.sub.2 and X are variables.