New phenethylamine derivatives from Arenibacter nanhaiticus sp. nov. NH36AT and their antimicrobial activity
作者:Yanping Chen、Jinshan Tang、Xixiang Tang、Chuanxi Wang、Yunyang Lian、Zongze Shao、Xinsheng Yao、Hao Gao
DOI:10.1038/ja.2013.65
日期:2013.11
Five new phenethylamine (PEA) derivatives (1â5) were isolated from the strain of Arenibacter nanhaiticus sp. nov. NH36AT derived from the marine sediment of the South China Sea by bioassay-guided fractionation. Their structures were elucidated by spectroscopic methods including UV, IR, HR-MS and NMR. Interestingly, compounds 1â4 existed as enantiomers, which were resolved by chiral liquid chromatography. The resolved configuration of each enantiomer was assigned by the Marfeyâs method. Of these compounds, 5 showed weak antimicrobial activity against Staphylococcus aureus and Bacillus subtilis with MIC values of 0.50 and 0.25âmgâmlâ1, respectively.
通过生物测定导向分离,从南海海洋沉积物中分离出的新种NH36AT菌株中分离得到5个新的苯乙胺(PEA)衍生物(1-5)。通过光谱方法包括紫外、红外、高分辨质谱和核磁共振对其结构进行了鉴定。有趣的是,化合物1-4以对映异构体的形式存在,通过手性液相色谱进行了分离。每个对映异构体的构型通过Marfey法进行了确定。在这些化合物中,5号化合物对金黄色葡萄球菌和枯草芽孢杆菌显示出弱抗菌活性,最小抑菌浓度(MIC)值分别为0.50和0.25 mg/ml。