A convenient synthesis of novel thiazolidin-4-one-linked pseudodisaccharides by tandem Staudinger/aza-Wittig/cyclization and their biological evaluation
作者:Xiaoliu Li、Qingmei Yin、Lingling Jiao、Zhanbin Qin、Junna Feng、Hua Chen、Jinchao Zhang、Ming Meng
DOI:10.1016/j.carres.2010.11.029
日期:2011.2
Novel thiazolidin-4-one-linked pseudodisaccharides 3-6 were synthesized by the one-pot tandem Staudinger/aza-Wittig/cyclization reaction at room temperature. The deacetylation of 3-6 afforded compounds 7-10, respectively. The structures of the new compounds were determined using single crystal X-ray crystallography, (1)H, (13)C, and 2D NMR spectroscopy, and HR mass spectrometry. The preliminary biological
通过一锅串联的Staudinger / aza-Wittig /环化反应在室温下合成新型的噻唑烷定-4-一连接的假二糖3-6。3-6的脱乙酰基分别得到化合物7-10。使用单晶X射线晶体学,(1)H,(13)C和2D NMR光谱以及HR质谱确定了新化合物的结构。化合物7-10的初步生物学评估表明,发现化合物7aa,8aa,7ab,8ab,7bb和8bb具有显着的免疫增强活性。这些测试的化合物中没有一个对糖苷酶或HIV逆转录酶具有明显的抑制作用,也没有显示出对癌细胞生长的抑制作用。