Biakamides A–D, Unique Polyketides from a Marine Sponge, Act as Selective Growth Inhibitors of Tumor Cells Adapted to Nutrient Starvation
作者:Naoyuki Kotoku、Ryosuke Ishida、Hirokazu Matsumoto、Masayoshi Arai、Kazunari Toda、Andi Setiawan、Osamu Muraoka、Motomasa Kobayashi
DOI:10.1021/acs.joc.6b02948
日期:2017.2.3
configuration of the secondary alcohol moiety in biakamides A and B, the absolute stereostructures of the two secondary methyl groups in biakamides A–D were determined by the asymmetric total syntheses of all possible stereoisomers from the optically pure monoprotected 2,4-dimethyl-1,5-diol. Biakamides A–D showed selective antiproliferative activities against PANC-1 cells cultured under glucose-deficient
Biakamides A–D是一种新型的异常独特的聚酮化合物,它是使用PANC-1人胰腺癌细胞从印尼海洋海绵(Petrosaspongia sp。)中进行构建的生物测定法分离得到的。通过对联氨酰胺的一维和二维NMR光谱的详细分析,平面化学结构具有末端噻唑,两个N获得了-甲基酰胺,氯亚甲基和取代的丁酰基部分。阐明了联氨酰胺A和B中仲醇部分的构型后,联氨酰胺A–D中两个仲甲基的绝对立体结构是由光学纯的单保护2,4-化合物中所有可能的立体异构体的不对称总合成确定的1,5-二甲基二醇。Biakamides A–D对在葡萄糖缺乏条件下以浓度依赖性方式培养的PANC-1细胞表现出选择性的抗增殖活性。发现Biakamides的主要作用方式是抑制线粒体电子传输链中的复合物I。