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    • 10. 发明授权
    • Peptides and method for synthesizing the same
    • 肽及其合成方法
    • US4404133A
    • 1983-09-13
    • US272979
    • 1981-06-12
    • Noboru YanaiharaKoji Konno
    • Noboru YanaiharaKoji Konno
    • A61K38/22A61P37/00C07C67/00C07C231/00C07C231/02C07K7/06G01N33/534G01N33/68C07C103/52G01N33/00
    • C07K7/062G01N33/534G01N33/6863Y10S930/18
    • Disclosed herein are the peptides possibly radio-labelled and having primary structures represented by the general formula (I):X-Ser-Gln-Gly-Gly-Ser-Asn-Y (I)wherein(1) X is H-Tyr-Gln-Ala-Lys and Y is a hydroxyl group,(2) X is pGlu-Ala-Lys(N.sup..epsilon. -Tyr-H) and Y is a hydroxyl group, or(3) X is pGlu-Ala-Lys and Y is Tyr-OH.These peptides can be synthesized by bonding a pre-determined amino acid or a peptide to the nitrogen at one of the two ends of the starting material, H-Asn-OH or H-Asn-Tyr-OH, while leaving the carboxyl group at the other end thereof in a free state, and by successively repeating the same procedure on the thus prepared peptides.The symbols, Ser, Gln, Gly, Asn, Tyr, Ala and Lys used herein represent respectively a divalent residue formed by removing one hydrogen atom from the amino group of and further removing one hydroxyl group from the carboxyl group of the respective alpha- amino acids, serine, glutamine, glycine, asparagine, tyrosine, alanine and lysine. For instance, Ser represents the divalent residue, --NH--CH(CH.sub.2 OH)--CO--. The symbol, pGlu, represents a monovalent residue formed by removing one hydroxyl group from the carboxyl group of pyroglutamic acid.
    • 本文公开了可能放射性标记并具有由通式(I)表示的一级结构的肽:X-Ser-Gln-Gly-Gly-Ser-Asn-Y(I)其中(1)X是H-Tyr- Gln-Ala-Lys和Y是羟基,(2)X是pGlu-Ala-Lys(Nε-Tyr-H),Y是羟基,或(3)X是pGlu-Ala-Lys和Y 是Tyr-OH。 这些肽可以通过将预定的氨基酸或肽键合在原料H-Asn-OH或H-Asn-Tyr-OH的两端之一的氮中,同时将羧基保留在 其另一端处于游离状态,并且依次对由此制备的肽重复相同的程序。 本文使用的符号Ser,Gln,Gly,Asn,Tyr,Ala和Lys分别表示通过从相应的α-氨基的羧基从氨基除去一个氢原子并进一步除去一个羟基而形成的二价残基 酸,丝氨酸,谷氨酰胺,甘氨酸,天冬酰胺,酪氨酸,丙氨酸和赖氨酸。 例如,Ser表示二价残基-NH-CH(CH 2 OH)-CO-。 符号pGlu表示通过从焦谷氨酸的羧基除去一个羟基而形成的一价残基。