ALKYL SUBSTITUTED NITROIMIDAZOLE ACETIC ACIDS

摘要

This invention provides the substantially pure (R) enantiomer of a compound of the Formula II: (II) <IMG> The compounds of Formula II are useful in the preparation of the substantially pure (R) enantiomer of angiotensin II antagonists of Formula III: <IMG> (III) wherein R1, Ar, R2 and X are variables.