摘要:
A decapeptide of the formula:N-Ac-A.sup.1 -A.sup.2 -A.sup.3 -SER.sup.4 -A.sup.5 -A.sup.6 -A.sup.7 -A.sup.8 -A.sup.9 -A.sup.10,wherein each A.sup.1, A.sup.2, and A.sup.3, independently, is D-.beta.-Nal, D-p-X-Phe (where X is halogen, H, NH.sub.2, NO.sub.2, OH, or C.sub.1-3 alkyl); A.sup.5 is p-X-Phe (where X is halogen, H, NH.sub.2, NO.sub.2, OH, or C.sub.1-3 alkyl); A.sup.6 is D-Lys, D-Arg, .beta.-Nal, D-.beta.-Nal, D-Trp, D-p-X-Phe (where X is halogen, H, NH.sub.2, NO.sub.2, or C.sub.1-3 alkyl) or D-lys-.epsilon.-NH-R (where R is H, a branched or straight chain or cyclo C.sub.1 -C.sub.10 alkyl group, or an aryl group); A.sup.7 is p-X-Phe (where X is halogen, H, NH.sub.2, NO.sub.2, OH, C.sub.2 F.sub.5, or C.sub.1-3 alkyl), cyclohexyala, or Trp; A.sup.8 is Arg, Lys, or Lys-.epsilon.-NH-R (where R is H, a branched or straight chain or cyclo C.sub.1 -C.sub.10 alkyl group, or an aryl croup); A.sup.9 is Pro; and A.sup.10 is D-Ala-NH.sub.2, Gly-NH.sub.2, D-Ser, or D-Ser-NH.sub.2 ; provided that at least one of A.sup.2 or A.sup.3 must be D-Phe or D-Tyr; and further provided that one or both of A.sup.6 and A.sup.8 must be the following: A.sup.6 must be D-Lys-.epsilon.-NH-R (where R is H, a branched or straight chain or cyclo C.sub.1 -C.sub.10 alkyl group, or an aryl group); A.sup.8 must be Lys-.epsilon.-NH-R (where R is H, a branched or straight chain or cyclo C.sub.1 -C.sub.10 alkyl group, or an aryl group), or a pharmaceuticaly acceptable salt thereof.
摘要:
Disclosed herein are peptide analogs of the luteinizing hormone releasing hormone (LH-RH) which are potent antagonists of LHRH. The analogs differ in structure from LH-RH by having different amino acid residues at positions 1, 2 and 6, and optionally at positions 3 and 10. Methods for preparing and using these analogs are described.
摘要:
There are disclosed peptides of the formula A-B-C and pharmaceutically acceptable salts thereof, in which A is selected from the group consisting of L-pyroglutamyl, D-pyroglutamyl, and L-homo-pyroglutamyl; B is selected from the group consisting of L-histidyl, L-3'-methylhistidyl, D-histidyl, L-phenylalanyl, L-p-aminophenylalanyl, and L-.beta.-(pyrazolyl-1)alanyl; and C is selected from the group consisting of glycine and lower alkyl esters thereof, glycinamide and lower alkyl amides thereof, 2-amino-1-hydroxyethyl, D-alanine, L-.beta.-(2-thienyl)-alanine, and NHR.sup.1 in which R.sup.1 is lower alkyl, with the proviso that C may not be glycine or glycinamide when A is L-pyroglutamyl and B is L-histidyl.The compounds have anorexigenic properties, inhibit excessive gastric and pancreatic secretion, and cause activation in the CNS. Methods for their preparation and use are also disclosed.
摘要:
Disclosed herein are peptide analogs of the luteinizing hormone releasing hormone (LH-RH) which are potent antagonist of LHRH. The analogs differ in structure from LH-RH by having different amino acid residues at positions 1, 2 and 6, and optionally at positions 3 and 10. Methods for preparing and using these analogs are described.
摘要:
Novel hentriacontapeptides having the following amino acid sequence:H-Tyr-X-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Ala-Tyr-Lys-Lys-Gly-Glu-Ywherein X is a chiral residue of a D-amino acid selected from the group consisting of D-alanine, D-leucine, D-isoleucine, D-valine, D-phenylalanine, D-tyrosine, D-tryptophan, D-serine, D-threonine, D-methionine, D-glutamic acid, D-glutamine, D-aspartic acid, D-asparagine, D-lysine, D-proline, D-histidine or D-arginine; Y is selected from the group consisting of hydroxy, amino, loweralkylamino, diloweralkylamino and lower alkoxy; and the pharmaceutically acceptable salts thereof; intermediates useful in making the novel compounds and pharmaceutical compositions and methods employing the novel compounds.
摘要:
Bis-(polypeptide) derivatives represented by the formulae: ##STR1## wherein: X is glycine or a chiral residue of a D-amino acid selected from the group consisting of D-alanine, D-leucine, D-isoleucine, D-valine, D-norvaline, D-phenylalanine, D-tyrosine, D-tryptophan, D-serine, D-threonine, D-methionine, D-glutamic acid, D-glutamine, D-aspartic acid, D-asparagine, D-lysine, D-proline, D-histidine and D-arginine; Y a residue of methionine or leucine and Z is selected from the group consisting of hydroxy, amino, loweralkylamine, diloweralkylamino and loweralkoxy; each R.sub.1 is hydrogen or fluorine and the pharmaceutically acceptable salts thereof; intermediates useful in making the novel pentapeptides and pharmaceutical compositions and methods employing them.
摘要:
Novel hexacosapeptides having the following amino acid sequenceH-Tyr-X-Gly-Phe-Met-Thr-Ser-Glu-Lys-Ser-Gln-Thr-Pro-Leu-Val-Thr-Leu-Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Ala-Ywherein: X is a chiral residue of a D-amino acid selected from the group consisting of D-alanine, D-leucine, D-isoleucine, D-valine, D-phenylalanine, D-tyrosine, D-tryptophan, D-serine, D-threonine, D-methionine, D-glutamic acid, D-glutamine, D-proline D-aspartic acid, D-asparagine, D-lysine, D-arginine and D-histadine; and Y is selected from the group consisting of hydroxy, amino, loweralkylamino, diloweralkylamino and lower alkoxy; and the pharmaceutically acceptable salts thereof; intermediates useful in making the novel compounds; and pharmaceutical compositions and methods employing the novel compounds.
摘要:
Novel tripeptides having the following amino acid sequenceH-Tyr-X-Gly-Ywherein: X is a chiral residue of a D-amino acid selected from the group consisting of D-alanine, D-leucine, D-isoleucine, D-valine, D-phenylalanine, D-tyrosine, D-tryptophan, D-serine, D-threonine, D-methionine, D-glutamic acid, D-glutamine, D-proline D-aspartic acid, D-asparagine, D-lysine, D-arginine and D-histidine; and Y is selected from the group consisting of hydroxy, amino, loweralkylamino, diloweralkylamino and lower alkoxy; and the pharmaceutically acceptable salts thereof; intermediates useful in making the novel compounds; and pharmaceutical compositions and methods employing the novel compounds.
摘要:
Novel octapeptides having the following amino acid sequence:H-Tyr-X-Gly-Phe-Met-Thr-Ser-Glu-Ywherein: X is a chiral residue of a D-amino acid selected from the group consisting of D-alanine, D-leucine, D-isoleucine, D-valine, D-phenylalanine, D-tyrosine, D-tryptophan, D-serine, D-threonine, D-methionine, D-glutamic acid, D-glutamine, D-proline D-aspartic acid, D-asparagine, D-lysine, D-arginine and D-histidine; and Y is selected from the group consisting of hydroxy, amino, loweralkylamino, diloweralkylamino and lower alkoxy; and the pharmaceutically acceptable salts thereof; intermediates useful in making the novel compounds; the pharmaceutical compositions and methods employing the novel compounds.