作者:Ming Dai、Xing Yuan、Zhi-Jun Zhu、Lei Shan、Run-Hui Liu、Qing-Yan Sun、Wei-Dong Zhang
DOI:10.1002/ardp.201200440
日期:2013.4
bulky p‐tosyl group into the free 1‐OH, and in the last step, some efficient demethylation methods were explored. Furthermore, all synthesized intermediates including 6‐deoxyisojacareubin were evaluated for their inhibitory activity against the QGY‐7703 cell line. Of these, compound 1 and 6‐deoxyisojacareubin showed moderate activities with IC50 values of 39.61 and 9.65 µM, respectively, when compared
6-Deoxyisojacareubin 采用六步法直接合成,总产率约为 20%。在这条路线中,克莱森重排环化反应级联反应的优异位点选择性是通过将庞大的对甲苯磺酰基插入游离的 1-OH 来实现的,并且在最后一步中,探索了一些有效的去甲基化方法。此外,还评估了包括 6-脱氧异茉莉花红素在内的所有合成中间体对 QGY-7703 细胞系的抑制活性。其中,与阳性对照 5-氟尿嘧啶的 IC50 值为 11.24 µM 相比,化合物 1 和 6-脱氧异茉莉花红素显示出中等活性,IC50 值分别为 39.61 和 9.65 µM。