Vitamin D3 analogues that contain modified A- and seco-B-rings as hedgehog pathway inhibitors
作者:Albert M. DeBerardinis、Daniel S. Raccuia、Evrett N. Thompson、Chad A. Maschinot、M. Kyle Hadden
DOI:10.1016/j.ejmech.2015.01.049
日期:2015.3
CD-ring/side chain region of vitamin D3 (VD3) linked to an aromatic A-ring mimic through an ester bond. To further explore structure–activity relationships for this class of VD3-based Hh pathway inhibitors, we have designed, synthesized and evaluated several series of compounds that modify the length, composition, and stereochemical orientation of the ester linker. These studies have identified compounds
刺猬(Hh)信号传导途径是一种发育信号传导途径,已被认为是多种人类恶性肿瘤中抗癌药物开发的靶标。几个天然和合成的维生素基于d-开环-steroids已被鉴定为与化学治疗潜在的Hh信号传导的有效抑制剂。其中包括先前表征的类似物4,其中包含维生素D3(VD3)的北部CD环/侧链区域,该区域通过酯键与芳香族A环模拟物相连。为了进一步探讨此类基于VD3的Hh途径抑制剂的结构活性关系,我们设计,合成和评估了一系列修饰酯连接基的长度,组成和立体化学方向的化合物。这些研究确定了含有胺连接基和掺入对苯酚的芳香族A环的化合物54和55,它们是对Hh途径具有增强效力的新的先导化合物(IC 50值分别为0.40和0.32μM)。