Absolute configurations of tubulin inhibitors taltobulin (HTI-286) and HTI-042 characterized by X-ray diffraction analysis and NMR studies
作者:Chuansheng Niu、Douglas M. Ho、Arie Zask、Semiramis Ayral-Kaloustian
DOI:10.1016/j.bmcl.2010.01.047
日期:2010.3
The stereochemistry of the tubulin inhibitors taltobulin HTI-286 (2) and HTI-042 (3) was determined by utilizing the DPFGSE 1D NOE experiment. Single crystal X-ray diffraction analysis further confirmed the absolute configuration of these two compounds, which carry the (S,S,S)-configuration necessary for biological activity.
微管蛋白抑制剂taltobulin HTI-286(2)和HTI-042(3)的立体化学是通过DPFGSE 1D NOE实验确定的。单晶X射线衍射分析进一步证实了这两种化合物的绝对构型,它们具有生物活性所必需的(S,S,S)构型。