The new peptides of the Formulae(1) Glp-Lys-NH.sub.2(2) Glp-Glu-Lys-NH.sub.2(3) Arg-Lys-Glu-NH.sub.2(4) Arg-lys-Asp-NH.sub.2(5) Arg-Lys-Glu-OH(6) Arg-Lys-Gln-OH(7) Leu-Val-Ala-OH(8) Arg-Orn-Asp-Val-NH.sub.2(9) Arg-Orn-Asp-Val-OH(10) Lys-Glu-Lys-Lys-OH(11) Lys-Leu-Lys-Lys-OH(12) Lys-Asp-Leu-Lys-OH(13
The invention relates to octapeptides of the formulawhereinX is a sarcosyl, lactoyl or hydroxyacetyl radical,Y is cyclopentylglycyl or cyclohexylglycyl, andW is an alanine radical or lactic acid radicalhaving angiotensine-II antagonistic activity.
Peptides affecting the immune regulation selected from the following group:Arg-Lys-AspArg-Lys-Asp-ValArg-Lys-Asn-ValArg-Lys-Asu-ValArg-Lys-Ala-ValArg-Lys-Asp-AlaArg-Lys-Asp-IleArg-Lys-Glu-ValArg-Ala-Asp-ValArg-Asp-Lys-ValAla-Lys-Asp-ValLys-Arg-Asp-ValGlp-Arg-Lys-AspGlp-Arg-Lys-Asp-ValGlp-Arg-Lys-Asp
Angiotensin II analog of the formula IwhereinX is a radical derived from an aliphatic .alpha.-aminooxy-carboxylic acid andY is a radical derived from an aliphatic .alpha.-amino-carboxylic acid,and acid addition salts and complexes thereof with antagonistic properties useful in the diagnosis
