作者:Narayana Rao Gundoju、Ramesh Bokam、Nageswara Rao Yalavarthi、Sudheer Kumar Buddana、R. S. Prakasham、Mangala Gowri Ponnapalli
DOI:10.1080/10286020.2018.1460362
日期:2019.3.4
The total syntheses of four polyketides, surinone B (1), alatanones A–B (2–3), and trineurone A (4) were accomplished through an efficient and unified strategy via one-pot C-acylation reaction coupling 1,3-cyclohexadiones with EDC-activated acids under mild conditions. Alatanone A (2) was found to be a potent anti-microbial agent against Gram-positive and Gram-negative bacteria with MIC 31.25 μg/ml
四个聚酮化合物,surinone B(全合成1),alatanones A-B(2 - 3),和trineurone A(4)经一锅C-酰化反应通过耦合的有效和统一的策略完成1,3-环己二酮与EDC活化的酸在温和的条件下。发现Alatanone A(2)是一种有效的抗革兰氏阳性和革兰氏阴性细菌的抗菌剂,MIC为31.25μg/ ml,而Alatanone B(3)被发现是一种有效的抗Cladosporium cladosporioides的抗真菌剂。MIC为62.5μg/ ml,而环己酰亚胺MIC为125μg/ ml。我们的方法可以对这些稀有的聚酮化合物进行千克规模的分析,以开发新的抗菌剂。