Exploring new chemical functionalities to improve aromatase inhibition of steroids
作者:Carla L. Varela、Cristina Amaral、Georgina Correia-da-Silva、Saul C. Costa、Rui A. Carvalho、Giosuè Costa、Stefano Alcaro、Natércia A.A. Teixeira、Elisiário J. Tavares-da-Silva、Fernanda M.F. Roleira
DOI:10.1016/j.bmc.2016.04.056
日期:2016.6
In this work, new potent steroidal aromatase inhibitors both in microsomes and in breast cancer cells have been found. The synthesis of the 3,4-(ethylenedioxy)androsta-3,5-dien-17-one (12), a new steroid containing a heterocycle dioxene fused in the A-ring, led to the discovery of a new reaction for which a mechanism is proposed. New structure-activity relationships were established. Some 5β-steroids
在这项工作中,已经发现了微粒体和乳腺癌细胞中新的有效的甾体芳香化酶抑制剂。3,4-(亚乙二氧基)androsta-3,5-dien-17-one(12)的合成是一种新的甾族化合物,其中含有杂环二恶烯稠合在A环中,导致发现了新的反应,提出了一种机制。建立了新的结构-活性关系。一些5β-类固醇(例如化合物4β,5β-环氧雄烷-17-一(9))显示出芳香化酶抑制活性,因为它们采用与芳香化酶天然底物雄烯二酮类似的A环构型。此外,还公开了增加平面度的新化学特征,特别是3α,4α-环丙烷环,如3α,4α-亚甲基-5α-雄烷-17-一(5)(IC50 =0.11μM)和Δ(9 -11)在C环中的双键,如androsta-4,9(11)-diene-3,17-二酮(13)(IC50 =0.25μM)。此外,诱导拟合对接(IFD)模拟和新陈代谢部位(SoM)预测有助于解释该酶中新的有效甾体芳香酶抑制剂的识别