Total Synthesis, Assignment of Absolute Stereochemistry, and Structural Revision of Chlorofusin
作者:Wen-Jian Qian、Wan-Guo Wei、Yong-Xia Zhang、Zhu-Jun Yao
DOI:10.1021/ja072225g
日期:2007.5.1
The first totalsynthesis of chlorofusin was accomplished in a convergent fashion. With all four unambiguous diastereomeric model chromophores as references, the absolutestereochemistry of the chlorofusin chromophore was determined and revised to be (4S,8R,9S) by 1H NMR studies and asymmetric synthesis. This allows the complete structure of natural chlorofusin to be assigned for the first time. Enantioselective
Unified flexible total synthesis of chlorofusin and artificial Click mimics as antagonists against p53–HDM2 interactions
作者:Hai-Bo Qiu、Xin-Ya Chen、Qing Li、Wen-Jian Qian、Shun-Ming Yu、Gong-Li Tang、Zhu-Jun Yao
DOI:10.1016/j.tetlet.2014.09.028
日期:2014.10
A practical HPLC-free total synthesis of chlorofusin has been successfully accomplished in this work. The new synthesis showed great flexibility and convenience in generating artificial natural product-like mimics through Click chemistry, and enabled us to further investigate the biological importance of the chromophore and the spiro-aminal functionality of the natural product. The entire skeleton is believed to be essential for satisfactory biological activities of both natural chlorofusin and unnatural mimics. Two artificial Click hybrids were found to exhibit improved inhibitory activity against p53-HDM2 bindings over the natural product. (C) 2014 Elsevier Ltd. All rights reserved.