摘要:
The present invention relates to peptides having strong LH-RH/FSH-RH activity, wherein Gly in the 6-position is replaced by different substituted amino acids and in the 10-position there is glycinamide or glycine in the 10-position is replaced by a NH-alkyl group with 1-3 carbon atoms or a NH-cyclopropyl group. The invention relates as well to a process for manufacturing said peptides, and to pharmaceutical preparations containing said peptides.
摘要:
A peptide with LH-RH-activity which is a LH-RH-peptide wherein Gly in 6-position is replaced by D-glutaminic-acid which may be N-substituted at the CO-NH.sub.2 moiety, wherein in 10-position Gly-NH.sub.2 may be replaced by a NH-alkyl or NH-cycloalkyl group and/or wherein the amino acids in 4-, 5-, 7- and/or 8-position may be replaced by other amino acids and a process for its manufacture.
摘要:
A process for the purification of secretin by chromatography on an alkylated dextran gel is disclosed, as is a method of its manufacture appropriate for preparing larger amounts of secretin.
摘要:
The invention relates to cyclic hexapeptides of the general formula III ##STR1## in which X represents the radical of an L-aminoacid of the general formula IIIa ##STR2## in which A and B are identical or different and denote alkyl having 1 to 3 carbon atoms, or A and B together represent a saturated, unsaturated or aromatic monocyclic or bicyclic structure having 3 to 6 carbon atoms, n denotes 0 or 1, and Y represents an aliphatic or aromatic L-aminoacid the side chain of which can be hydroxylated, and their salts with physiologically tolerated acids, and to a process for their preparation and their use and their intermediates.
摘要:
The invention relates to peptides of the formulaR.sup.N --L--N--B.sup.2 --R.sup.C (I)in which R.sup.N denotes an acyl radical, L denotes a radical of a lipophilic, neutral .alpha.-amino acid, N denotes a radical of an neutral .alpha.-amino acid, B.sup.2 denotes the radical of a basic .alpha.-amino acid, and R.sup.C denotes an amido radical; a process for their preparation, agents containing these peptides, and their use.
摘要:
What are disclosed are a nonapeptide of the formula ##STR1## wherein D-Aad (OBu.sup.t) represents D-.alpha.-aminoadipic acid .delta.-tert. butyl ester, methods for making this peptide, pharmaceutical preparations containing this peptide, and methods for its use in increasing fertility or for contraception.
摘要:
Pharmaceutical preparations containing an L-pyroglutamic acid amide, processes for their preparation and methods of treating psychotic diseases with them.
摘要:
The invention relates to a process for the preparation of peptides of the general formulaArg--Lys--S--Val--Yin which S denotes glutamic acid or .alpha.-aminoadipic acid and Y denotes tyrosine or tryptophan or esters or amides thereof, which comprises subjecting tetrapeptides of the formulaZ--Arg(Z'.sub.2)--Lys(Z')--S--(Bzl)--Val--OHin which Z' represents a protective group of the benzyl type, to a condensation reaction with corresponding tyrosine esters or amides or tryptophan esters or amides and removing the protective groups by hydrogenation. The invention furthermore relates to tetrapeptides as intermediate products of this process.
摘要:
The invention provides a nonapeptide of the formula IGlu-Asp-Ser-Ser-Ser-Thr-Gly-Trp-Asn-OH (I)a process for the preparation thereof and its use, furthermore intermediates for preparing a compound of the formula I.