Synthesis and Antiproliferative Activities of
<scp>OSW</scp>
‐1 Analogues Bearing 2”‐
<scp>
<i>O</i>
‐
<i>p</i>
‐Acylaminobenzoyl
</scp>
Residues
<sup>†</sup>
作者:Lijun Sun、Di Zhu、Laura Olde Groote Beverborg、Ruina Wang、Yongjun Dang、Mingming Ma、Wei Li、Biao Yu
DOI:10.1002/cjoc.202000110
日期:2020.10
OSW‐1 is a well‐known natural saponin with potent antitumor activities. We have designed and prepared a small library of 22 OSW‐1 analogues with a variety of p‐acylamino‐benzoyl groups installed at C2” of the xylose residue, wherein a regioselective (1→3)‐glycosylation of arabinoside 3,4‐diol has been achieved by manipulation of the protecting groups on the imidate donors. Bioassays lead to new structure‐activity
OSW-1是众所周知的天然皂苷,具有强大的抗肿瘤活性。我们设计并制备了一个小数据库,包含22个OSW-1类似物,在木糖残基的C2”处安装了各种对酰基氨基苯甲酰基,其中阿拉伯糖苷3,4-二醇的区域选择性(1→3)-糖基化通过操纵亚氨酸酯供体上的保护基已达到目的。生物测定法导致了新的结构-活性关系以及两种适用的荧光探针,这些探针位于HeLa细胞中的溶酶体中,可用于进一步研究活细胞中OSW-1的抗肿瘤机制。