Synthesis of structurally diverse benzosuberene analogues and their biological evaluation as anti-cancer agents
作者:Rajendra P. Tanpure、Clinton S. George、Tracy E. Strecker、Laxman Devkota、Justin K. Tidmore、Chen-Ming Lin、Christine A. Herdman、Matthew T. MacDonough、Madhavi Sriram、David J. Chaplin、Mary Lynn Trawick、Kevin G. Pinney
DOI:10.1016/j.bmc.2013.08.035
日期:2013.12
aryl–alkyl ring systems hold a prominent position as well-established molecular frameworks for a variety of anti-cancer agents. The benzosuberene (6,7 fused, also referred to as dihydro-5H-benzo[7]annulene and benzocycloheptene) ring system has emerged as a valuable molecular core component for the development of inhibitors of tubulin assembly, which function as antiproliferative anti-cancer agents and,
多种功能化的稠合芳基-烷基环系统作为多种抗癌药物的成熟分子框架占据着突出的地位。苯并环庚烯(6,7稠合,也称为二氢-5H-苯并[7]轮烯和苯并环庚烯)环系统已成为开发微管蛋白组装抑制剂的有价值的分子核心成分,其功能是抗增殖抗抗癌剂,在某些情况下,还可作为血管破坏剂 (VDA)。酚基类似物(称为KGP18,化合物39)及其相应的胺基同源物(称为KGP156,化合物45),均表现出对微管蛋白组装的强烈抑制作用(低微摩尔范围)和有效的细胞毒性(皮摩尔范围为KGP18和纳摩尔范围的KGP156是此类基于苯并环庚烯的化合物的值得注意的例子。为了扩展与苯并蒎烯抗癌药物相关的构效关系(SAR)知识库,制备了一系列11种类似物(包括KGP18),其中芳基侧环上的甲氧基化模式以及官能团掺入稠合芳环是多种多样的。这些化合物的合成方法采用连续的维蒂希烯化、还原、伊顿试剂介导的环化策略来实现核心苯并环庚酮中间体,