摘要:
The invention relates to tumor-inhibiting heptapeptide and octapeptide amide derivatives and to a method of treating mammals, including men, suffering from tumors or from the excessive secretion of insulin, glucagon or growth hormone using these compounds.
摘要:
The invention features novel peptide derivatives called Reversins, and provides for their use in a method of reducing the activity of the multi-drug transporter protein MDR1 in order to overcome multidrug resistance in a mammal. The peptide derivatives are of the formula (I) X1n-X2-X3(X4)n-X5, wherein n is 0 or 1, and each n is the same or different; X1 is BOC, BOC-Asu, Z-Asu, benzyloxycarbonyl, Glu(OBzl)-OBzl, Trp-OMe, Trp-Phe-OMe, Phe-Trp-OMe, Phe-Phe-OtBu, Trp-Trp-OtBu, indoloacetyl, benzoyl, an alkylanine of 1-4 carbons, dibenzylamide, tryptamide, 1-amino-adamantine, aminomethylcyclohexane, indoline, phenylethylamide or dicyclohexylamide; X2 is Glu(OBzl), Asp(OBzl), succinyl, O,O-dibenzoyltartaroyl, diphenoyl, muconyl, Thx, Cpa, Asu, Nal, Pen, Phg, Dbt, Lys(BOC), Lys(Z), Cys(Bzl), Thr(Bzl), Glu(OtBu), tert.-Leu, Leu, Nle, Pro, Phe, Tyr(Bzl), or Ser(Bal); X3 is Asp, Asu, Lys, Glu, Trp, Thx, Cpa, Nal, Pen, Phg, Dbt, Glu(OtBu), tert.-Leu, Leu, Nle, Pro, Tyr, Phe, or Tyr(Bzl); X4 is BOC-Glu(OBzl), Glu(OBzl), Asu, OBzl, Bzl, BOC, BOC-Lys(BOC), Z-Glu(OtBu), Asp(OBzl), Asp(OBz)-OBzl, benzyloxycarbonyl, O-(cyclo-hexyl), fluorenylmethyl ester, Glu(OtBu), Glu(OtBu)-OBzl, 1-amino-adamantine, aminomethylcyclohexane, indoline, phenylethylarnide, or dicyclohexylamide; and X5 is OMe, OBzl, OtBu, Phe-OMe, -O-(cyclohexyl), Trp-OMe, (chlorophenyl)-isobutylamide, fluorenylmethyl ester, ONp, 1-aminoadamantane, aminomethylcyclohexane, indoline, phenylethylamide, or dicyclohexylamide.
摘要:
The invention relates to new peptides of the formula ##STR1## wherein R.sup.2 represents Ala or D-Ala,R.sup.11 represents Arg or D-Arg,R.sup.13 represents Val or Ile,R.sup.15 represents Gly, Leu, Phe or a valence bond,R.sup.27 represents Met or Nle,R.sup.28 represents Ser, D-Ser or Asn, andY represents OH or NH.sub.2,and to salts thereof. These compounds stimulate the release of growth hormone and can be used in the therapy as well as for veterinary or animal husbandry purposes.
摘要:
The present invention provides peptides and pharmacologically active compounds including gonadotropin-releasing hormone (GnRH) analogues according to formulas of the invention, wherein the compounds show an antitumor effect. The invention additionally provides compositions including these peptides and compounds.
摘要:
The present invention provides peptides and pharmacologically active compounds including gonadotropin-releasing hormone (GnRH) analogues according to formulas of the invention, wherein the compounds show an antitumour effect. The invention additionally provides compositions including these peptides and compounds.
摘要:
The present invention relates to novel gonadoliberine analogues of formula IGlp-His-Trp-Ser-X-W-Leu-Arg-Pro-Y (I)whereinX is Phe-, Tyr (3,5-.sup.3 H) or 3,5-dibromo-tyrosyl,W is Asu or Asp OR, wherein R is alkyl having 1 to 6 carbon atoms or phenyl or phenyl (alkyl having 1 to 4 carbon atoms), which latter two groups may optionally be substituted by nitro or one or more halogen atoms, andY is glycinamide, aza-glycinamide or alkylamino having 1 to 4 carbon atoms,and acid-addition salts thereof, processes for preparing the same and pharmaceutical compositions comprising the same.The novel compounds have an influence on the sexual processes.
摘要:
The invention relates to a process for increasing the sexual activity of birds and useful domestic mammals and for preparing spermatozoa suitable to their propagation. The process of the invention comprises treating sexually mature male birds or useful domestic mammals at least twice and at most four times with 0.1 to 5 .mu.g/kg of body weight of a compound of the general formula (I),Glp-His-Trp-Ser-Tyr-X.sub.1 -Leu-Arg-Pro-X.sub.4 (I)whereinX.sub.1 stands for a glycyl group, a natural or synthetic aminoacid or aminoacid derivative of D configuration, an -Asp-Q group of L configuration, wherein Q is attached to the .alpha.-carbonyl moiety of the aspartyl group and represents a C.sub.1-5 alkylamide, an arylamide, a C.sub.1-4 alkoxy or a benzyloxy group; andX.sub.4 stands for a glycylamide or a C.sub.1-4 alkylamide group,while keeping a pause of at least 30 hours and at most 72 hours between the consecutive treatments.The process of the invention can mainly be used in such large-scale breedings, where artificial insemination is employed but it can be used also for any domestic bird or cought wild-fowl and ornamental bird as well as useful domestic mammal under the conditions of the natural reproduction or artificial insemination.