Syntheses of a library of molecules on the marine natural product ianthelliformisamines platform and their biological evaluation
作者:Faiz Ahmed Khan、Saeed Ahmad、Naveena Kodipelli、Gururaj Shivange、Roy Anindya
DOI:10.1039/c3ob42537a
日期:——
A–C are a novel class of bromotyrosine-derived antibacterial agents isolated recently from the marine sponge Suberea ianthelliformis. We have synthesized ianthelliformisamines A–C straightforwardly by the condensation of (E)-3-(3,5-dibromo-4-methoxyphenyl)acrylic acid and the corresponding Boc-protected polyamine followed by Boc-deprotection with TFA. Further, using this reaction protocol, a library
Ianthelliformisamines A–C是一类新的从溴酪氨酸衍生的抗菌剂,最近从海洋海绵Suberea ianthelliformis中分离出来。我们通过(E的缩合直接合成了邻苯二甲胺)-3-(3,5-二溴-4-甲氧基苯基)丙烯酸和相应的Boc保护的多胺,然后用TFA进行Boc脱保护。此外,使用该反应方案,通过使用3-苯基丙烯酸衍生物和Boc保护的多胺链,通过这两个片段的不同组合(苯环取代,双键几何结构或链不同),合成了其类似物(39个类似物)的文库多胺链中央间隔基团的长度(以红色显示)。筛选所有合成的化合物(苯乙酰胺胺A–C及其类似物)对革兰氏阴性菌(大肠杆菌)和革兰氏阳性菌(金黄色葡萄球菌)的抗菌活性)株。苯乙酰胺胺A的所有合成类似物均对两种菌株(大肠杆菌和金黄色葡萄球菌)均显示出细菌生长抑制作用,MIC值在117.8–0.10μM范围内,而苯乙酰胺胺C的任何合成类似物以及母