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    • 6. 发明申请
    • PEPTIDE BINDING THE KLVFF-SEQUENCE OF AMYLOID 'beta'
    • 肽结合AMYLOID beta的KLVFF序列
    • WO1997021728A1
    • 1997-06-19
    • PCT/SE1996001621
    • 1996-12-09
    • KAROLINSKA INNOVATIONS ABNORDSTEDT, ChristerNÄSLUND, JanTHYBERG, JohanTJERNBERG, Lars, O.TERENIUS, Lars
    • KAROLINSKA INNOVATIONS AB
    • C07K14/47
    • C07K5/0821A61K38/00C07K5/0808C07K5/0815C07K5/0819C07K5/101C07K5/1019C07K5/1021C07K5/1024C07K14/4711G01N33/6896G01N2800/2821
    • The invention relates to compounds of formula (I) or (II), which are of interest especially for inhibition of polymerization of amyloid beta peptide, as model substances for synthesis of amyloid beta peptide-ligands, as tools for the identification of other organic compounds with similar functional properties and/or as ligands for detection of amyloid deposits using e.g. positron emission tomography (PET). Formula (II) is: R1 - A' - Y' - Leu - X' - Z' - B' - R2, in which X' means any group or amino acid imparting to the compound according to formula (I) the ability to bind to the KLVFF-sequence in amyloid beta peptide, or two amino acids imparting the same ability, but with the proviso that one is not proline; Y' means any amino acid; Z' means any non-acidic amino acid; A' means a direct bond or an alpha -amino acid bonded at the carboxyl terminal of the alpha -carboxy group or a di-, tri-, tetra- or pentapeptide bonded at the carboxyl terminal of the alpha -carboxy group; B' means a direct bond or an alpha -amino acid bonded at the alpha -nitrogen or a di-, tri-, tetra- or pentapeptide bonded at the alpha -nitrogen of the N-terminal alpha -amino acid; R1 is H or -CO-R3 bonded at the alpha -aminogroup of A'; R2 is H, -OR4 or NR5R6, all bonded to the alpha -carboxyl group of the alpha -carboxyterminal of B'; R3 and R4 are straight or branched carbon chain of 1-4 carbon atoms; R5 and R6 are independently H, alkyl, cycloalkyl, aryl or substituted aryl or together are -(CH2)n-, where n is 4-5; and R1 and R2 together can form a hydrocarbon ring or heterocyclic ring; all alpha -amino acids being either D- or L-isomers.
    • 本发明涉及式(I)或(II)化合物,其特别用于抑制淀粉样蛋白β肽的聚合作为淀粉样蛋白β肽配体的合成的模型物质,作为用于鉴定其它有机化合物的工具 具有类似的功能性质和/或用于检测淀粉样沉积物的配体 正电子发射断层扫描(PET)。 式(II)是:R1-A'-Y'-Leu-X'-Z'-B'-R2,其中X'表示赋予根据式(I)的化合物的任何基团或氨基酸, 结合淀粉样蛋白β肽中的KLVFF序列或赋予相同能力的两个氨基酸,但条件是一个不是脯氨酸; Y'表示任何氨基酸; Z'表示任何非酸性氨基酸; A'是指在α-羧基的羧基末端键合的直接键或α-氨基酸,或在α-羧基的羧基末端键合的二,三,四或五肽; B'是指在α-氮键合的直接键或α-氨基酸,或在N-末端α-氨基酸的α-氮上键合的二 - ,三 - ,四 - 或五肽; R1是在A'的α-氨基团键合的H或-CO-R3; R2是H,-OR4或NR5R6,均与B'的α-羧基末端的α-羧基键合; R3和R4是1-4个碳原子的直链或支链碳链; R 5和R 6独立地为H,烷基,环烷基,芳基或取代的芳基,或一起为 - (CH 2)n - ,其中n为4-5; 并且R 1和R 2可以一起形成烃环或杂环; 所有α-氨基酸是D-或L-异构体。