| 摘要 |
<p>Compounds having the formula <IMAGE> and alkyl esters and salts thereof. R1 is hydrogen, alkanoyl, benzoyl or <IMAGE> R2 is hydrogen, alkyl, or phenylalkyl; n is 0 or 1; and A1 and A2 each is an ???-amino or ???-imino acid residue joined through a peptide bond, have hypotensive activity.</p> |
