Short-step synthesis and structure-activity relationship of cortistatin A analogs
作者:Naoyuki Kotoku、Aoi Ito、Shunichi Shibuya、Kanako Mizuno、Aki Takeshima、Masaki Nogata、Motomasa Kobayashi
DOI:10.1016/j.tet.2017.01.042
日期:2017.3
An improved method for synthesizing structurally simplified analogs of cortistatin A (1), a novel anti-angiogenic steroidal alkaloid from a marine sponge, was developed. In contrast to previous methods, step- and redox-economical synthesis was achieved using a known α-bromoketone as the starting material. The structure-activity relationship study revealed that the isoquinoline portion was strictly recognized
开发了一种改进的方法,用于从海洋海绵中合成皮质抑素A(1)(一种新型的抗血管生成类固醇生物碱)的结构简化类似物。与以前的方法相比,使用已知的α-溴代酮作为起始原料,可以实现分步和氧化还原经济的合成。结构-活性关系研究表明,异喹啉部分被目标分子严格识别。出人意料的是,在A环结构上引入乙酰胺部分极大地增强了对内皮细胞的选择性抗增殖活性。这种新方法可以轻松地用于克级合成,并使我们能够制备各种类似物,这些类似物侧重于侧链和A环结构的参与。