Columbia University

Medical College of Ohio

Other

Maurice Manning

Wilbur H Sawyer

Compounds acting as antagonists of the antidiuretic/and or vasopressor activity of arginine vasopressin are those of the formula

Linear derivatives of arginine vasopressin antagonists

Compounds acting as antagonists of the antidiuretic/and or vasopressor activity of arginine vasopressin are those of the formula ##STR1## wherein n is 4 or 5; X is (D- or L-)Tyr(R), D-Phe, D-Val, D-Leu, D-Ile, D-Nva, D-Nle, D-Cha, D-Abu, D-Thr, D-Asn, D-Met or D-Gln; Y is Val, Ile, Thr, Ala, Lys, Cha, Nva, Met, Nle, Orn, Ser, Asn, Gln, Phe, Tyr, Gly, Abu or Leu; Z is (D- or L-) Arg, Orn or Lys; Q is Arg(NH.sub.2), Ser(NH.sub.2), (D- or L-)Ala(NH.sub.2), Gly, OH or NH.sub.2 and R is methyl, ethyl, propyl or butyl; provided that, when Y is Gln or Val, R may also be H. Further compounds are those wherein Q is NH(CH.sub.2).sub.3-6 NH.sub.2, NH(CH.sub.2).sub.2-6 OH, NHalk or NHbzl, provided that when Y is Val, Q is other than NHalk or NHbzl. Other compounds are those wherein Q is M-P, wherein M is Gly, (D- or L-)beta-Ala, (D- or L-)Ala, Sar, Orn, Val, Phe, Ile, Thr, Pro, Tyr, Arg or Ser and P is NHalk, NHbzl, NH(CH.sub.2).sub.2-6 OH, NH(CH.sub.2).sub.2-6 NH.sub.2 or OH, provided that when M is Gly, P is other than OH, and that when M is (D-or L-)beta-Ala, P is also NH.sub.2. Further compounds include decapeptides wherein Q is M-A-P', wherein M and A are selected independently from Gly, (D- or L-)beta-Ala, (D-or L-)Ala, Sar, Orn, Val, Phe, Ile, Thr, Pro, Tyr, Arg or Ser and P' is OH, NH.sub.2, NHalk, NH(CH.sub.2).sub.2-6 NH.sub.2, NHbzl or NH(CH.sub.2).sub.2-6 OH. Additional compounds include those wherein X is D-Tyr.

Novel derivatives of arginine vasopressin antagonists

Compounds acting as antagonists of the antidiuretic/and or vasopressor activity of arginine vasopressin are those of the formula ##STR1## wherein n is 4 or 5; X is (D- or L-)Tyr(R), D-Phe, D-Val, D-Leu, D-Ile, D-Nva, D-Nle, D-Cha, D-Abu, D-Thr, D-Asn, D-Met or D-Gln; Y is Val, Ile, Thr, Ala, Lys, Cha, Nva, Met, Nle, Orn, Ser, Asn, Gln, Phe, Tyr, Gly, Abu or Leu; Z is (D- or L-) Arg, Orn or Lys; Q is Arg(NH.sub.2), Ser(NH.sub.2), (D- or L-)Ala(NH.sub.2), Gly, OH or NH.sub.2 and R is methyl, ethyl, propyl or butyl; provided that, when Y is Gln or Val, R may also be H.

Compounds acting as antagonists of the antidiuretic/and or vasopressor activity of arginine vasopressin are those of the formula ##STR1## wherein n is 4 or 5; X is (D- or L-)Tyr(R), D-Phe, D-Val, D-Leu, D-lle, D-Nva, D-Nle, D-Cha, D-Abu, D-Thr, D-Asn, D-Met or D-Gln; Y is Val, lle, Thr, Ala, Lys, Cha, Nva, Met, Nle, Orn, Ser, Asn, Gln, Phe, Tyr, Gly, Abu or Leu; Z is (D- or L-) Arg, Orn or Lys; Q is Arg(NH.sub.2), Ser(NH.sub.2), (D- or L-)Ala(NH.sub.2), Gly, OH or NH.sub.2 and R is methyl, ethyl, propyl or butyl; provided that, when Y is Gln or Val, R may also be H. Further compounds are those wherein Q is Orn(NH.sub.2), NHCH.sub.2 CH.sub.2 NH.sub.2, Val(NH.sub.2), Phe(NH.sub.2), lle(NH.sub.2), Thr(NH.sub.2), Pro(NH.sub.2) or Tyr(NH.sub.2).

Compounds acting as antagonists of the an

Derivatives of arginine vasopressin antagonists

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, .DELTA..sup.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.

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-Phe, D-Val, D-Leu, D-Ile, D-Arg, D-norvaline, D-norleucine, D-cyclohexylalanine, D-.alpha.-aminobutyric acid, D-threonine or D-methionine and Z is D- or L-Arg.

Novel 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 methyl, ethyl, n-propyl, isopropyl or butyl; Tyr is D- or L-; W is Pro or .DELTA..sup.3 -Pro; and Z is L- or D- Arg. Related compounds in which X is H, methyl or ethyl; W is Pro and Val at the 4-position is replaced by Gln- have antivasopressor activity against arginine vasopressin. Compounds wherein D-Tyr is unetherified (X is H), W- is Pro and Z- is D- or L-Arg also act as antagonists of the antidiuretic activity of arginine vasopressin.

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Toledo, OH, United States of America

Maurice Manning