Chaetochromones A and B, two new polyketides from the fungus Chaetomium indicum (CBS.860.68).

Chaetochromones A and B, two new polyketides from the fungus Chaetomium indicum (CBS.860.68).
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Chaetochromones A和B,来自真菌Chaetomium Infimum的两个新聚酮化合物(CBS.860.68)。

DOI:
10.3390/molecules180910944
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发表时间:
2013-09-05
期刊:
Molecules (Basel, Switzerland)
影响因子:
--
通讯作者:
Ding G
Ding G
中科院分区:
其他
文献类型:
--
作者:
Lu K;Zhang Y;Li L;Wang X;Ding G

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毛壳色酮A(1)和B(2)这两种新型聚酮化合物,连同三种已知类似物PI - 3(3)、PI - 4(4)和SB236050(5)一起从印度毛壳菌(CBS.860.68)的粗提物中分离出来。这些化合物的结构通过高分辨率电喷雾电离质谱(HRESI - MS)和核磁共振(NMR)实验确定。毛壳色酮A(1)和B(2)是聚酮化合物家族的成员,它们可能与已知化合物PI - 3(3)、PI - 4(4)和SB236050(5)源自相似的生物合成途径。对这些次生代谢产物针对八种植物病原体的生物活性进行了评估,这些病原体包括链格孢菌、根腐丝囊霉、绿色木霉、黑曲霉、轮枝镰刀菌、乳白耙齿菌、茯苓和云芝。化合物1对引起木材严重腐朽的褐腐真菌茯苓显示出中等抑制率(>60%)。此外,还测试了对三种癌细胞系A549、MDA - MB - 231、PANC - 1的细胞毒活性,但未检测到任何抑制活性。
Chaetochromones A (1) and B (2), two novel polyketides, were isolated from the crude extract of fungus Chaetomium indicum (CBS.860.68) together with three known analogues PI-3(3), PI-4 (4) and SB236050 (5). The structures of these compounds were determined by HRESI-MS and NMR experiments. Chaetochromones A (1) and B (2) are a member of the polyketides family, which might originate from a similar biogenetic pathway as the known compounds PI-3 (3), PI-4 (4) and SB236050 (5). The biological activities of these secondary metabolites were evaluated against eight plant pathogens, including Alternaria alternata, Ilyonectria radicicola, Trichoderma viride pers, Aspergillus niger, Fusarium verticillioide, Irpex lacteus (Fr.), Poria placenta (Fr.) Cooke and Coriolus versicolor (L.) Quél. Compound 1 displayed moderate inhibitory rate (>60%) against the brown rot fungus Poria placenta (Fr.) Cooke, which causes significant wood decay. In addition, the cytotoxic activities against three cancer cell lines A549, MDA-MB-231, PANC-1 were also tested, without any inhibitory activities being detected.
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