Synthesis and Biological Evaluation of 17β-Alkoxyestra-1,3,5(10)-trienes as Potential Neuroprotectants Against Oxidative Stress
作者:Laszlo Prokai、Su-Min Oon、Katalin Prokai-Tatrai、Khalil A. Abboud、James W. Simpkins
DOI:10.1021/jm000280t
日期:2001.1.1
17beta-O-Alkyl ethers (methyl, ethyl, propyl, butyl, hexyl, and octyl) of estradiol were obtained from 3-O-benzyl-17beta-estradiol with sodium hydride/alkyl halide, followed by the removal of the O-benzyl protecting group via catalytic transfer hydrogenation. An increase compared to estradiol in the protection of neural (HT-22) cells against oxidative stress due to exposure of glutamate was furnished
从3-O-苄基-17β-雌二醇与氢化钠/烷基卤化物获得雌二醇的17beta-O-烷基醚(甲基,乙基,丙基,丁基,己基和辛基),然后除去O-苄基保护基通过催化转移氢化。与雌二醇相比,由于暴露于谷氨酸而导致的神经(HT-22)细胞对氧化应激的保护作用增强是由较高的(C-3至C-8)烷基醚提供的,而甲基和乙基醚则明显降低了神经保护作用。封闭A环的酚羟基(3-OH)的亲脂性(丁基和辛基)醚没有活性。