Analogues of Wysine-vasopressin in which the carboxamide groups on the glutamine and asparagine residues at positions 4 and 5 are replaced individually by hydrogen have been synthesized by the p-nitrophenyl ester method of peptide synthesis and tested for some of the pharmacological activities characteristic of this pressor-antidiuretic hormone of the posterior pituitary gland. The 4-decarboxam...
