Amino Acids and Peptides; 60.<sup>1</sup>Synthesis of Biologically Active Cyclopeptides; 10. Synthesis of 16 Structural Isomers of Dolastatin 3; II:<sup>2</sup>Synthesis of the Linear Educts and the Cyclopeptides
Sixteen isomers of the cancerostatic cyclopeptide Dolastatin 3 of marine origin are synthesized. The proposed structure of Dolastatin 3 is proved to be not correct.
The total synthesis of the peptide cyclo [Pro-Leu-Val-(gly)Thz-(gly)Thz] a simplified analog of dolastatin 3 is reported here. Analysis of the 350 MHz 1H NMR spectrum permits the design of a spatial molecular model. This conformational feature is of interest in the tentatives to assign the real structure of dolastatin 3 in the knowledge of intramolecular interaction of this drug with biological receptors
此处报道了肽环[Pro-Leu-Val-(gly)Thz-(gly)Thz] dolastatin 3的简化类似物的总合成。通过对350 MHz 1 H NMR光谱进行分析,可以设计空间分子模型。在该药物与生物受体的分子内相互作用的知识中,该构象特征是在尝试中指定dolastatin 3的真实结构所感兴趣的。
BAILLY, CHRISTIAN;HOUSSIN, RAYMOND;BERNIER, JEAN-LUC;HENICHART, JEAN-PIER+, TETRAHEDRON, 44,(1988) N 18, C. 5833-5843