Synthesis of 1,3,6-Trioxygenated Prenylated Xanthone Derivatives as Potential Antitumor Agents
作者:Chan K. Lim、Lai-Yeng Tho、Yang M. Lim、Syed A. A. Shah、Jean-Frederic F. Weber
DOI:10.2174/157017812802850230
日期:2012.9.1
To investigate the antitumor activities of xanthonic compounds, 10 prenylated xanthone derivatives 2-11 along
with their key building block 1,3,6-trihydroxyxanthone 1 were evaluated for their potential cytotoxic activities against
HeLa and MDA-MB-231 cancer cell lines. The synthesis afforded a series of prenylated derivatives with typical and new
xanthone skeletons. Compounds 2, 3, 4 and 9 were reported for the first time to possess a new scaffold of 2H-xanthene-
3,9-dione. Interestingly, analogues 2 and 3 with the new scaffold demonstrated remarkable in vitro growth inhibitory
activities against both the cell lines by displaying a greater cytotoxic potency than the standard drugs used in the assay,
namely doxorubicin and cisplatin. In contrast, a dramatic loss of activity was observed for the O-prenylated derivatives 9-
11. These findings have highlighted the therapeutic potential of 2H-xanthene-3,9-dione scaffold to be exploitable as drug
lead with specific activity against cervical and breast cancers.
为了研究氧杂蒽酮化合物的抗肿瘤活性,研究人员评估了10种前酰化氧杂蒽酮衍生物2-11及其关键结构单元1,3,6-三羟基氧杂蒽酮1对HeLa和MDA-MB-231癌细胞株的潜在细胞毒性活性。合成过程中得到了一系列具有典型和新型氧杂蒽酮骨架的预炔化衍生物。化合物 2、3、4 和 9 首次被报道具有 2H-氧杂蒽酮-3,9-二酮的新支架。有趣的是,具有新支架的类似物 2 和 3 在体外对两种细胞系都表现出了显著的生长抑制活性,其细胞毒性效力高于试验中使用的标准药物,即多柔比星和顺铂。与此相反,O-异戊烯化衍生物 9-11 的活性急剧下降。这些发现凸显了 2H-氧杂蒽-3,9-二酮支架的治疗潜力,可用作具有特异性宫颈癌和乳腺癌活性的先导药物。