作者:Peter Wipf、Stephen M. Lynch、Anne Birmingham、Giselle Tamayo、Allan Jiménez、Nefertiti Campos、Garth Powis
DOI:10.1039/b402431a
日期:——
Spiroketal naphthodecalins are readily assembled by Barton's base mediated Ullmann binaphthyl ether coupling, Dakin reactions and hypervalent iodine spirocyclization. The core structures can be further diversified by enone addition and Stille coupling reactions. Nanomolar inhibitors for the Trx/TrxR redox control system were prepared by this approach and compared to series of natural product isolates. Cytotoxicity in MCF-7 cell assays ranged from an IC50 of 1.6 to >100 µM.
斯匹罗酮缩萘并十氢化萘可通过基于巴顿碱的乌尔曼联萘醚偶联反应、达金反应和超氧化碘螺环化反应方便地组装。核心结构可通过烯酮加成和斯蒂尔偶联反应进一步多样化。通过这种方法制备了纳摩尔级的硫氧还/硫氧还还原酶氧化还原控制系统抑制剂,并与一系列天然产物分离物进行了比较。在MCF-7细胞试验中的细胞毒性范围从IC50的1.6到>100 μM。