Total Synthesis, Characterization, and Conformational Analysis of the Naturally Occurring Hexadecapeptide Integramideâ
A and a Diastereomer
作者:Marta Deâ
Zotti、Francesca Damato、Fernando Formaggio、Marco Crisma、Elisabetta Schievano、Stefano Mammi、Bernard Kaptein、Quirinusâ
B. Broxterman、Peterâ
J. Felock、Dariaâ
J. Hazuda、Sheoâ
B. Singh、Jochen Kirschbaum、Hans Brückner、Claudio Toniolo
DOI:10.1002/chem.200900945
日期:2010.1.4
L‐Iva14‐D‐Iva15. Herein, we describe the syntheses of the natural compound and its D‐Iva14‐L‐Iva15 diastereomer, and the results of their chromatographic/mass spectrometric analyses. We present the conformational analysis of the two compounds and some of their synthetic intermediates of different main‐chain length in the crystal state (by X‐ray diffraction) and in solvents of different polarities (using circular
整合剂A是HIV-1整合酶的16个氨基酸的肽抑制剂。最近,我们报道了C末端附近的二肽序列的绝对立体化学是L- Iva 14 - D- Iva 15。在这里,我们描述了天然化合物及其D- Iva 14 - L- Iva 15的合成非对映异构体及其色谱/质谱分析的结果。我们介绍了两种化合物及其一些合成中间体的构象分析,这些中间体在晶体状态(通过X射线衍射)和在不同极性的溶剂中(使用圆二色性,FTIR吸收和2D NMR技术)具有不同的主链长度)。这些数据阐明了抑制HIV-1整合酶的机制,这是抗HIV治疗的重要目标。