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首页> 外文期刊>Bioorganic and Medicinal Chemistry Letters >Design and synthesis of a bis(cycloisodityrosine) analogue of RA-VII, an antitumor bicyclic hexapeptide.
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Design and synthesis of a bis(cycloisodityrosine) analogue of RA-VII, an antitumor bicyclic hexapeptide.

机译:设计和合成RA-VII(一种抗肿瘤双环六肽)的双(环异酪氨酸)类似物。

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摘要

An analogue of an antitumor bicyclic hexapeptide RA-VII was prepared, in which the Ala-2 and Tyr-3 residues of RA-VII were replaced by a cycloisodityrosine unit. In the crystalline state, the peptide backbone structures and the side-chain conformations at Tyr-3, Tyr-5, and Tyr-6 of this analogue and of RA-II were very similar. This analogue, however, showed much weaker cytotoxicity against P-388 leukemia cells than parent RA-VII.
机译:制备了抗肿瘤双环六肽RA-VII的类似物,其中RA-VII的Ala-2和Tyr-3残基被环异酪氨酸单元取代。在结晶状态下,该类似物和RA-II的肽骨架结构和Tyr-3,Tyr-5和Tyr-6的侧链构象非常相似。然而,该类似物对P-388白血病细胞的毒性比亲本RA-VII弱得多。

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