Methyl-substituted conformationally constrained rexinoid agonists for the retinoid X receptors demonstrate improved efficacy for cancer therapy and prevention
作者:Anil Desphande、Gang Xia、LeeAnn J. Boerma、Kimberly K. Vines、Venkatram R. Atigadda、Susan Lobo-Ruppert、Clinton J. Grubbs、Fariba L. Moeinpour、Craig D. Smith、Konstantin Christov、Wayne J. Brouillette、Donald D. Muccio
DOI:10.1016/j.bmc.2013.11.039
日期:2014.1
potency of 9cUAB30, we synthesized 4-methyl analogs of 9cUAB30, which introduced chirality at the 4-position of the tetralone ring. The syntheses and biological evaluations of the racemic homolog and enantiomers are reported. We demonstrate that the S-enantiomer is the most potent and least toxic even though these enantiomers bind in a similar conformation in the ligand binding domain of RXR.
(2 E ,4 E ,6 Z ,8 Z )-8-(3',4'-Dihydro-1'(2 H )-naphthalen-1'-ylidene)-3,7-二甲基-2,3, 6-辛三烯酸,9cUAB30,是一种针对类视黄醇 X 核受体 (RXR) 的选择性 rexinoid。9cUAB30 显示出显着的化学预防能力,毒性很小,并正在作为一种新型癌症预防剂应用于临床。为了提高 9cUAB30 的效力,我们合成了 9cUAB30 的 4-甲基类似物,它在四氢萘酮环的 4-位引入了手性。报道了外消旋同系物和对映异构体的合成和生物学评价。我们证明了S- 对映异构体是最有效且毒性最小的,即使这些对映异构体在 RXR 的配体结合域中以相似的构象结合。