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ANTAGONISTIC ANALOGUES OF GROWTH HORMONE RELEASING-HORMONE (GH-RH) INHIBITING INSULIN-LIKE GROWTH FACTORS (IGF-I AND -II)
ANTAGONISTIC ANALOGUES OF GROWTH HORMONE RELEASING-HORMONE (GH-RH) INHIBITING INSULIN-LIKE GROWTH FACTORS (IGF-I AND -II)
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机译:生长激素释放激素(GH-RH)抑制胰岛素样生长因子(IGF-I和-II)的拮抗类似物
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FIELD: medicine, oncology, chemistry of peptides.;SUBSTANCE: invention relates to peptide taken among the group of the formula: X-R1-R2-Asp-Ala-R-Thr-R8-R-R10-Arg-R12-R13-R14-R15-R16-Leu-R18-R19-Arg-R21-R22-Leu-Gln-Asp-Ile-R27-R28-R29-NH2 wherein X means PhAc, IndAc or Nac; R1 means Tyr or His; R2 means D-Arg; R5 means Ile or Val; R6 means Phe or Phe(Cl); R8 means Asn, Gln, Ala or D-Asn; R9 means Arg, Har, Lys, Orn, D-Arg, D-Har, D-Lys, D-Orn, Cit, Nle, Tyr(Me), Ser, Ala or Aib; R10 means Tyr or Tyr(Me); R12 means Lys; R13 means Val or Nle; R14 means Leu or Nle; R15 means Gly, Ala, Abu, Nle or Gln; R16 means Gln or Arg; R18 means Ser or Nle; R19 means Ala; R21 means Lys; R22 means Leu, Ala or Aib; R27 means Met, Leu, Nle, Abu or D-Arg; R28 means Arg, D-Arg or Ser; R29 means Arg, D-Arg, Har or D-Har under condition that if R9 and R28 mean Ser then R29 is not Arg or Har, and its pharmaceutically acceptable salts. Compounds are antagonists of the growth hormone releasing hormone and elicit the enhanced affinity for receptor. Invention describes also a method for suppression of excessive levels of the growth hormone in a patient, method for treatment of malignant tumor and method for inhibition of levels of IGF-II in tumors.;EFFECT: valuable medicinal properties of analogues.;11 cl, 9 tbl, 5 dwg, 4 ex
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机译:肽发明领域本发明涉及一种肽,其选自下式:XR 1 Sup> -R 2 Sup> -Asp-Ala-R -Thr-R 8 Sup> -RR 10 Sup> -Arg-R 12 Sup> -R 13 Sup> -R 14 Sup> -R 15 Sup> -R 16 Sup> -Leu-R 18 Sup> -R 19 Sup> -Arg-R 21 Sup> -R 22 Sup> -Leu-Gln-Asp-Ile-R 27 Sup> -R 28 Sup> -R 29 Sup> -NH 2 Sub>其中X表示PhAc,IndAc或Nac; R 1 Sup>表示Tyr或His; R 2 Sup>表示D-Arg; R 5 Sup>表示Ile或Val; R 6 Sup>表示Phe或Phe(Cl); R 8 Sup>表示Asn,Gln,Ala或D-Asn; R 9 Sup>是指Arg,Har,Lys,Orn,D-Arg,D-Har,D-Lys,D-Orn,Cit,Nle,Tyr(Me),Ser,Ala或Aib; R 10 Sup>表示Tyr或Tyr(Me); R 12 Sup>表示Lys; R 13 Sup>表示Val或Nle; R 14 Sup>表示Leu或Nle; R 15 Sup>是指Gly,Ala,Abu,Nle或Gln; R 16 Sup>表示Gln或Arg; R 18 Sup>表示Ser或Nle; R 19 Sup>表示Ala; R 21 Sup>表示Lys; R 22 Sup>表示Leu,Ala或Aib; R 27 Sup>是指Met,Leu,Nle,Abu或D-Arg; R 28 Sup>是指Arg,D-Arg或Ser; R 29 Sup>表示Arg,D-Arg,Har或D-Har,条件是如果R 9 Sup>和R 28 Sup>表示Ser,则R 29 Sup>不是Arg或Har及其药学上可接受的盐。化合物是生长激素释放激素的拮抗剂,并引起增强的受体亲和力。本发明还描述了一种用于抑制患者体内过量的生长激素的方法,一种用于治疗恶性肿瘤的方法以及一种用于抑制肿瘤中的IGF-II水平的方法。效果:类似物的有价值的医学特性; 11 cl, 9桶,5桶,4桶
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