首页> 外文期刊>The Journal of Antibiotics: An International Journal >Aqabamycins A-G: Novel nitro maleimides from a marine Vibrio species. I. Taxonomy, fermentation, isolation and biological activities
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Aqabamycins A-G: Novel nitro maleimides from a marine Vibrio species. I. Taxonomy, fermentation, isolation and biological activities

机译:阿卡巴霉素A-G:来自海洋弧菌的新型硝基马来酰亚胺。一,分类学,发酵,分离和生物活动

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摘要

In a screening of marine bacteria, a Vibrio species isolated from the surface of the soft coral Sinularia polydactyla collected in the Red Sea was found to be a prolific producer of secondary metabolites with antibacterial and cytotoxic activities. Seven novel maleimide derivatives named aqabamycin A (1a), aqabamycin B (1b), aqabamycin C (1c), aqabamycin D (1d), aqabamycin E (1e and 1e′), aqabamycin F (1f) and aqabamycin G (2) were isolated together with several known metabolites such as 3-nitro-1H-indazole (3), indazole-3- carbaldehyde (4), phenyl-2-bis-indolylmethane (5a), turbomycin B (5b), vibrindole A (6), 1,4-dithiane (7), 3-(3-nitro-4-hydroxyphenyl)-2-propenoic acid (8), 3-nitro-4-hydroxybenzaldehyde (9), phenylacetic acid, benzoic acid, 3-hydroxybenzoic acid and 4-hydroxycinnamic acid. The aqabamycins, except aqabamycin A, bear a nitro group. Compounds 3, 4, 7 are described here for the first time from a natural source and vibrindole A was found to have cytotoxic activity.
机译:在对海洋细菌的筛选中,发现从红海中收集的软珊瑚多齿藻表面分离出的弧菌是多产具有抗菌和细胞毒性活性的次生代谢产物。分别命名为阿卡巴霉素A(1a),阿卡巴霉素B(1b),阿卡巴霉素C(1c),阿卡巴霉素D(1d),阿卡巴霉素E(1e和1e'),阿卡巴霉素F(1f)和阿卡巴霉素G(2)的七个新的马来酰亚胺衍生物。与几种已知的代谢物一起分离出来,例如3-硝基-1H-吲唑(3),吲唑-3-甲醛(4),苯基-2-双吲哚甲烷(5a),霉素B(5b),振动吲哚A(6) ,1,4-二噻吩(7),3-(3-硝基-4-羟基苯基)-2-丙酸(8),3-硝基-4-羟基苯甲醛(9),苯乙酸,苯甲酸,3-羟基苯甲酸酸和4-羟基肉桂酸。除阿卡巴霉素A外,阿卡巴霉素还带有一个硝基。本文首次从天然来源描述了化合物3、4、7,发现纤吲哚A具有细胞毒活性。

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