摘要:
The present invention relates to the use of the peptides of the general formula:A--B--L--Phe (or L--Ala)--D--Lys--L--Phe--Z--OH, IwhereA represents one of the following groups: H--L--Met, H--L--Met(O), H--L--Met(O.sub.2), desamino-Met, desamino-Met(O) or desamino-Met(O.sub.2),B represents one of the following di-peptide fragments: Glu--His or Ala--Ala, where one amino acid residue of this di-peptide fragment can occur in the D form, andZ is either absent, or represents the amino acid residue Gly, or is the peptide fragment (10-16)--ACTH, where the amino acid L--Lys may be replaced, if desired, by D--Lys at position 11 of the (10-16)--ACTH fragment,and the functional derivatives thereof in promoting axonal regeneration.
摘要:
Analogues of the tridecapeptide hormone, .alpha.-melanotropin (a-melanocyte stimulating hormone, .alpha.-MSH) of the formula:Ac-Ser.sup.1 -Tyr.sup.2 -Ser.sup.3 -Y.sup.4 -Glu.sup.5 -His.sup.6 -X.sup.7 -Arg.sup.8 -Trp.sup.9 -Gly.sup.10 -Lys.sup.11 -Pro.sup.12 -Val.sup.13 -NH.sub.2wherein X and Y are amino acid residues and X is in a D-isomeric configuration. Preferred analogues, e.g. [Nle.sup.4, D-Phe.sup.7 ]-.alpha.-MSH, display increased in vitro and in vivo potency, prolongation and serum stability characteristics and may be covalently bonded to other elements or compounds (e.g., radioisotopes of iodine) without significant loss of biological activity.
摘要:
Novel peptides of ACTH activity, having a complete ACTH sequence from the N-terminal amino acid at least to the sixteenth amino acid, but containing optionally other amino acids in the place of the individual amino acids of the ACTH sequence, and always containing an Alpha -aminooxy acid in the place of the first amino acid have been prepared by deblocking the appropriate protected peptide derivatives. The new compounds, as well as their acid addition salts, derivatives or complexes possess potent ACTH activities and are resistant to enzymatic decomposition. They can be used in therapy with great advantages.
摘要:
The present invention is directed to a group of linear and cyclic peptides having the structures: ##STR1## These peptides, when systemically administered to animals will bring about a sexual response and are thus useful for the diagnosis and treatment of psychogenic sexual dysfunction in the male.
摘要:
Peptides having adrenocorticotropic hormone activity and resin peptides useful in preparation of such peptides, particularly such peptides having asparagine at the carboxyl end thereof and more particularly such peptides having from 19 to 25 amino acids in their amino acid chains. The invention further involves new processes for the preparation of such peptides.
摘要:
Biologically active novel peptides and peptide-derivatives of the general formula: ##STR1## where A represents H-(L or D)Met, H-(L or D)Met(.fwdarw.O), H-(L or D)Met(.fwdarw.O.sub.2)desamino-Met, desamino-Met(.fwdarw.O),desamino-Met(.fwdarw.O.sub.2) or the group H.sub.2 N--B--CO--;B represents a branched or straight-chain alkylene (C.sub.1 -C.sub.6) or alkylidene (C.sub.1 -C.sub.6) group;Q represents the amino-acid residue --NH--CHR--CO--;R represents alkyl (C.sub.1 -C.sub.6), p-hydroxyphenylmethyl, 3-indolylmethyl or phenylmethyl;R.sub.1 and R.sub.2 represent hydrogen or an alkyl(1-6C) group, andZ represents N-(phenylalkyl)amino, N-(.beta.-indolylalkyl)amino, L-Trp-OH, L-Phe-OH, L-Trp-Gly-OH or L-Phe-Gly-OH, as well as the functional derivatives thereof.
摘要翻译:生物活性的新型肽和肽衍生物,通式如下:其中A表示H-(L或D)Met,H-(L或D)Met( - > O),H-(L或D) ( - > O 2)desamino-Met,desamino-Met( - > O),desamino-Met( - > O 2)或H 2 N-B-CO-基团; B表示支链或直链亚烷基(C1-C6)或亚烷基(C1-C6)基团; Q表示氨基酸残基-NH-CHR-CO-; R代表烷基(C1-C6),对羟基苯基甲基,3-吲哚基甲基或苯基甲基; R 1和R 2表示氢或烷基(1-6C)基团,Z表示N-(苯基烷基)氨基,N-(β-吲哚基烷基)氨基,L-Trp-OH,L-Phe-OH,L-Trp- Gly-OH或L-Phe-Gly-OH,以及其功能衍生物。
摘要:
The invention concerns peptides having the general formula X--Glu--His--Phe--Arg--Trp--Gly--Lys--Pro--Val--Gly--Lys--Lys--Y--NH.sub.2 wherein X represents alkyloxy carbonyl, aryl alkyloxy carbonyl or D-Ser-Met, and Y represents a residue of n diaminomonocarboxylic acids, n being an integer of 2-4, and a method of producing the same.
摘要:
PEPTIDES AND PEPTIDE AMIDES CONTAINING 18-39 AMINOACIDS OF THE N-TERMINUS OF NATURAL CORTICOTROPINS, BUT IN WHICH THE FIRST AMINOACID IS REPLACED BY D-A-PHENYLGLYCINE AND THE AMINOACIDS IN THE POSITIONS 17 AND 18 ARE REPLACED BY L-LYSINE OR L-ORNITHINE, AND ANALOGUES OF THESE COMPOUNDS.