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  • Title: [Synthesis and biological activity of cyclic analogs of angiotensin].
    Author: Bisenietse DA, Antsans IuE, Myshliakova NV, Kublik GG, Porunkevich EA.
    Journal: Bioorg Khim; 1987 Feb; 13(2):149-59. PubMed ID: 2437929.
    Abstract:
    Biological properties of five novel angiotensin analogues synthesized, using the conventional methods of peptide chemistry, have been studied. Cyclization was attained by means of amide linkage with the aid of diphenylphosphorylazide or pentafluorophenyl esters. Unlike the natural hormone, the cyclic analogues of angiotensin show no pressor activity, but elicit a depressor effect untypical of angiotensin. A slight pressor activity was exhibited by the compound containing aspartic acid in position 1. The cyclic analogues in question release histamine from peritoneal mast cells in rats.
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