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    • 2. 发明申请
    • CANCER IMAGING AND TREATMENT
    • 癌症成像和治疗
    • US20110027175A1
    • 2011-02-03
    • US12280829
    • 2007-02-27
    • Hans Jürgen WesterNorman KoglinMarkus SchwaigerHorst KesslerBurkhardt LauferOliver DemmerMartina Anton
    • Hans Jürgen WesterNorman KoglinMarkus SchwaigerHorst KesslerBurkhardt LauferOliver DemmerMartina Anton
    • A61K51/08C07K7/64A61K49/00A61P43/00
    • C07K7/64A61K51/08A61K51/088
    • A compound, or a pharmaceutically acceptable salt or ester thereof, comprises a ligand for the chemokine receptor CXCR4 and a detectable label, the ligand having a binding affinity for the CXCR4 receptor, measured as IC50 in the presence of 125I-CPCR4, of 25O nM or lower, wherein the ligand comprises a cyclic oligopeptide moiety having the motif B-Arg or B-(Me)Arg within the cyclic moiety, and wherein B is a basic amino acid; a derivative thereof, or phenylalanine, provided that the motif is B-Arg when B is a Nα-methyl derivative of a basic amino acid. In preferred embodiments, the cyclic oligopeptide moiety has the sequence: cyclo[D-Tyr/(Me)D-Tyr-B-Arg/(Me)Arg-Z-(Ala)n-X] wherein: B is as defined above; Z is an amino acid containing an aromatic group in its side chain; n is 1 or 0, provided that n is 1 only when the preceding four amino acids in the cyclic moiety sequence are D-Tyr/(Me)D-Tyr-Arg-Arg-NaI, NaI being L-3-(2-naphthyl)alanine; and X is selected from Gly, (Me)Gly, Ala, Dap (diaminopropionic acid), Dap(FP) ((N-fluoropropionyl)-diaminopropionic acid), Dab (diaminobutylic acid), Dab(FP) ((N-fluoropropionyl)-diaminobutyric acid), Dab(FB) ((N-fluorobenzoyl)-diaminobutyric acid) and Dap(FB) ((N-fluorobenzoyl)-diaminopiOpionic acid). The compounds may be useful for diagnostic imaging and/or therapeutic purposes.
    • 化合物或其药学上可接受的盐或酯包含用于趋化因子受体CXCR4的配体和可检测标记,在125I-CPCR4存在下以250nM的IC50测定的对CXCR4受体具有结合亲和力的配体 或更低,其中所述配体包含在环状部分内具有基序B-Arg或B(Me)Arg的环状寡肽部分,其中B为碱性氨基酸; 其衍生物或苯丙氨酸,条件是当B是碱性氨基酸的Nα-甲基衍生物时,基序是B-Arg。 在优选的实施方案中,环状寡肽部分具有以下顺序:环[D-Tyr /(Me)D-Tyr-B-Arg /(Me)Arg-Z-(Ala)n-X]其中:B如上所定义; Z是其侧链中含有芳基的氨基酸; n为1或0,条件是仅当环状部分序列中的前述四个氨基酸为D-Tyr /(Me)D-Tyr-Arg-Arg-NaI时,n为1,NaI为L-3-(2- 萘基)丙氨酸; 并且X选自Gly,(Me)Gly,Ala,Dap(二氨基丙酸),Dap(FP)((N-氟丙酰基) - 二氨基丙酸),Dab(二氨基丁酸),Dab(FP)((N-氟丙酰基 ) - 二氨基丁酸),Dab(FB)((N-氟苯甲酰基) - 二氨基丁酸)和Dap(FB)((N-氟苯甲酰基) - 二氨基丙酸)。 该化合物可用于诊断成像和/或治疗目的。