Antagonists of the antidiuretic action of arginine vasopressin

Compounds acting as antagonists of the antidiuretic activity of arginine vasopressin are those of the formula ##STR1## wherein X is (D- or L-)Tyr(R), D-Tyr, D-Phe, D-Val, D-Leu D-Ile, D-Arg, D-Gln, D-Asn, D-NVa, D-Nle, D-Cha, D-Abu, D-Thr or D-Met; R is methyl, ethyl, propyl or butyl and Z is D- or L-Arg. Also acting as antagonists of the antidiuretic action of arginine vasopressin are compounds of the formula ##STR2## wherein X and Z are as above and n is 4 or 5. Other antagonists of the antidiuretic action of arginine vasopressin are of the formula ##STR3## wherein X and n are as above and Z' is (D- or L-)Orn or (D- or L-)Lys. Other antagonists of the antidiuretic action of arginine vasopressin are of the formula ##STR4## wherein X is above, W is D-Pro, ?3 -Pro or HO-Pro; Z" is (D- or L-)Arg, (D- or L-)Lys or (D- or L-)Orn and n is 4 or 5; provided that when X is (D- or L-)Tyr(R) and n is 5, W is HO-Pro or D-Pro and that when X is D-Gln or D-Asn and n is 5, W is also Pro.
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Abstract/Description: Compounds acting as antagonists of the antidiuretic activity of arginine vasopressin are those of the formula ##STR1## wherein X is (D- or L-)Tyr(R), D-Tyr, D-Phe, D-Val, D-Leu D-Ile, D-Arg, D-Gln, D-Asn, D-NVa, D-Nle, D-Cha, D-Abu, D-Thr or D-Met; R is methyl, ethyl, propyl or butyl and Z is D- or L-Arg. Also acting as antagonists of the antidiuretic action of arginine vasopressin are compounds of the formula ##STR2## wherein X and Z are as above and n is 4 or 5. Other antagonists of the antidiuretic action of arginine vasopressin are of the formula ##STR3## wherein X and n are as above and Z' is (D- or L-)Orn or (D- or L-)Lys. Other antagonists of the antidiuretic action of arginine vasopressin are of the formula ##STR4## wherein X is above, W is D-Pro, ?3 -Pro or HO-Pro; Z" is (D- or L-)Arg, (D- or L-)Lys or (D- or L-)Orn and n is 4 or 5; provided that when X is (D- or L-)Tyr(R) and n is 5, W is HO-Pro or D-Pro and that when X is D-Gln or D-Asn and n is 5, W is also Pro.
Subject(s): 514/10.9
514/15.4
530/329
530/330
930/20
930/21
930/150
Date Issued: 1985-01-01