Compounds of the formula CHEM wherein X is O or S-(O)t; n is one or two; m is zero or one; Y is CH2, O, or S-(O)t provided that Y is O or S-(O)t only when m is one; and A is CHEM are dual inhibitors of NEP and ACE. Compounds wherein A is CHEM are selective ACE inhibitors. Also disclosed are methods of preparation and intermediates.
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