Design, synthesis, and evaluation of hybrid vitamin D3 side chain analogues as hedgehog pathway inhibitors
作者:Upasana Banerjee、Albert M. DeBerardinis、M. Kyle Hadden
DOI:10.1016/j.bmc.2014.12.005
日期:2015.2
CD-ring side chain that afford enhancement of selectivity for Hh modulation thereby diminishing the detrimental effects of concomitant vitamin D receptor activation. In general, linear or moderately branched alkyl chains of five or six carbons were optimal for potent and selective inhibition of Hh signaling. Moreover, hybrid VD3 side chain derivative 20 demonstrated 4-fold improvement in Hh antagonistic
维生素D3(VD3)是刺猬(Hh)信号级联反应的中度有效和非选择性抑制剂。先前的研究已经确定,VD3的CD环区域可作为Hh抑制药效团。随后,化合物3,酯连接的芳族A环和CD环衍生物被鉴定为改进的选择性Hh抑制剂。在本文中,我们报告了CD环侧链的修饰,该修饰可增强Hh调节的选择性,从而减少伴随的维生素D受体激活的有害作用。通常,具有5或6个碳原子的直链或中支链烷基链对于Hh信号的有效和选择性抑制是最佳的。此外,混合VD3侧链衍生物20与VD3相比,Hh拮抗活性提高了4倍(IC 50 = 1.1–1.6μM),而维生素D受体途径的规范激活使Hh信号选择性提高了1000倍以上。