Department of Chemistry, The University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.
Org Lett. 2011 Oct 7;13(19):5140-3. doi: 10.1021/ol202020c. Epub 2011 Sep 9.
Previous work from our laboratory has established that the readily available steroid-based analog 2 of cyclopamine 1 is, like 1, a highly potent inhibitor of Hedgehog signaling. The first structure-activity relationship studies on 2, i.e., the synthesis and biological evaluation of both the C-17 epi analog 4 and the C-3 deoxy analog 11, both of which are more potent than cyclopamine 1, are described. The implications of these results for the emerging pharmacophore of these Sonic Hedgehog signaling inhibitors are discussed.
我们实验室之前的工作已经证实,环巴胺 1 的易得甾体类似物 2 与 1 一样,是 Hedgehog 信号的高效抑制剂。本文首次对 2 进行了构效关系研究,即 C-17 表异构类似物 4 和 C-3 去氧类似物 11 的合成和生物评价,这两种类似物均比环巴胺 1 更有效。讨论了这些结果对这些 Sonic Hedgehog 信号抑制剂的新兴药效团的意义。