New chiral derivatives of xanthones: Synthesis and investigation of enantioselectivity as inhibitors of growth of human tumor cell lines
作者:Carla Fernandes、Kamonporn Masawang、Maria Elizabeth Tiritan、Emília Sousa、Virgínia de Lima、Carlos Afonso、Hassan Bousbaa、Wanwisa Sudprasert、Madalena Pedro、Madalena M. Pinto
DOI:10.1016/j.bmc.2013.12.042
日期:2014.2
high enantiomeric excess. The synthesized CDXs were evaluated for their effect on the in vitro growth of three human tumor cell lines, namely A375-C5 (melanoma), MCF-7 (breast adenocarcinoma), and NCI-H460 (non-small cell lung cancer). The most active compound was CDX 15 being active in all human tumor cell lines with values of GI50 of 32.15 ± 2.03 μM for A375-C5, 22.55 ± 1.99 μM for MCF-7, and 14.05 ± 1
已经开发了一种高效和实用的方法,用于合成对映体纯形式的新的氧杂蒽酮(CDXs)手性衍生物。根据这种方法,三十CDXs(3 - 32)通过耦合carboxyxanthone(合成1)和carboxymethoxyxanthone(2)与市售的手性结构单元,即6氨基醇,一种胺和一种氨基酯的两种对映体。所述xanthonic支架的羧酸基团的活化与偶联试剂进行ø - (苯并三唑-1-基) - NNN ' -N在无水THF中催化量的TEA存在下的四氟硼酸'-四甲基尿鎓(TBTU)。与手性嵌段的偶联反应在室温下以短的反应时间,优异的收率(从94%至99%)和非常高的对映体过量进行。评估了合成的CDXs对三种人类肿瘤细胞系A375-C5(黑色素瘤),MCF-7(乳腺癌)和NCI-H460(非小细胞肺癌)体外生长的影响。活性最高的化合物是CDX 15,在所有人类肿瘤细胞系中均具有GI 50值对于A375-C5为32