Two new 2-alkylquinolones, inhibitory to the fish skin ulcer pathogen Tenacibaculum maritimum, produced by a rhizobacterium of the genus Burkholderia sp.

Two new 2-alkylquinolones, inhibitory to the fish skin ulcer pathogen Tenacibaculum maritimum, produced by a rhizobacterium of the genus Burkholderia sp.
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DOI:
10.3762/bjoc.14.122
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发表时间:
2018
影响因子:
2.7
通讯作者:
Igarashi Y
Igarashi Y
中科院分区:
化学4区
文献类型:
--
作者:
Li D;Oku N;Hasada A;Shimizu M;Igarashi Y

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伯克霍尔德氏菌属的根际细菌作为生物活性分子的未开发资源的探索导致了两个新的抗微生物2-烷基-4-喹诺酮的分离。(E)-2-(庚-2-烯-1-基)喹啉-4(1H)-酮(1)和(E)-2-(壬-2-烯-1-基)喹啉-4(1H)-酮(3)与四种已知的烷基喹诺酮(2和4-6)、吡咯硝基(7)和BN-227(8)一起从菌株MBAF 1239的培养液中分离。1和3的结构使用NMR光谱和质谱明确地表征。化合物1-8抑制海洋细菌海洋韧杆菌(Tenacibaculum maritimum)的生长,海洋细菌是海洋鱼类皮肤溃疡的病原体,为开发用于鱼类养殖的抗菌药物提供了新的机会。
Exploration of rhizobacteria of the genus Burkholderia as an under-tapped resource of bioactive molecules resulted in the isolation of two new antimicrobial 2-alkyl-4-quinolones. (E)-2-(Hept-2-en-1-yl)quinolin-4(1H)-one (1) and (E)-2-(non-2-en-1-yl)quinolin-4(1H)-one (3) were isolated from the culture broth of strain MBAF1239 together with four known alkylquinolones (2 and 4–6), pyrrolnitrin (7), and BN-227 (8). The structures of 1 and 3 were unambiguously characterized using NMR spectroscopy and mass spectrometry. Compounds 1–8 inhibited the growth of the marine bacterium Tenacibaculum maritimum, an etiological agent of skin ulcers in marine fish, offering new opportunities to develop antibacterial drugs for fish farming.
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