New polyketides and cytotoxic alkaloids from the mangrove endophytic fungus Talaromyces sp. SAF14.

IF 1.6 3区 化学 Q3 CHEMISTRY, APPLIED
Natural Product Research Pub Date : 2025-08-01 Epub Date: 2024-06-17 DOI:10.1080/14786419.2024.2367239
Hong Li, Cankai Lin, Kaixin Chen, Zhihui Zhou, Zanhong Chen, Bo Ding, Hongbo Huang, Yiwen Tao
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引用次数: 0

Abstract

Investigation of secondary metabolites from the mangrove endophytic fungus Talaromyces sp. SAF14 led to the isolation of two new polyketides, methyl (R)-3-(6,8-dihydroxy-7-methoxy-1-oxoisochroman-3-yl)propanoate (1), (R)-3-(5,8- dihydroxy-1-oxoisochroman-3-yl)propanoic acid (2), together with four known alkaloids (3-6). The planar structures of new compounds were elucidated by comprehensive analysis of HR-ESI-MS and NMR data. The absolute configurations were determined by comparison of the calculated ECD spectrum with the measured one. All the isolated compounds were tested for cytotoxic activities against three human cancer cell lines. The known beauvericin (3) exhibited strong cytotoxic activity against A549, MCF-7, and KB cell lines with IC50 values of 5.36 ± 2.49, 1.96 ± 1.09 and 4.46 ± 0.68 μM, respectively.

来自红树林内生真菌 Talaromyces sp. SAF14 的新多酮和细胞毒性生物碱。
通过对红树林内生真菌 Talaromyces sp. SAF14 的次级代谢产物的研究,分离出两种新的多酮类化合物,即 (R)-3-(6,8- 二羟基-7-甲氧基-1-氧代异苯并二氢吡喃-3-基)丙酸甲酯 (1)、(R)-3-(5,8- 二羟基-1-氧代异苯并二氢吡喃-3-基)丙酸 (2),以及四种已知的生物碱 (3-6)。通过对 HR-ESI-MS 和 NMR 数据进行综合分析,阐明了新化合物的平面结构。通过比较计算的 ECD 光谱和测量的 ECD 光谱,确定了绝对构型。对所有分离出的化合物进行了针对三种人类癌细胞系的细胞毒活性测试。已知的山嵛菜苷 (3) 对 A549、MCF-7 和 KB 细胞株具有很强的细胞毒活性,IC50 值分别为 5.36 ± 2.49、1.96 ± 1.09 和 4.46 ± 0.68 μM。
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来源期刊
Natural Product Research
Natural Product Research 化学-医药化学
CiteScore
5.10
自引率
9.10%
发文量
605
审稿时长
2.1 months
期刊介绍: The aim of Natural Product Research is to publish important contributions in the field of natural product chemistry. The journal covers all aspects of research in the chemistry and biochemistry of naturally occurring compounds. The communications include coverage of work on natural substances of land and sea and of plants, microbes and animals. Discussions of structure elucidation, synthesis and experimental biosynthesis of natural products as well as developments of methods in these areas are welcomed in the journal. Finally, research papers in fields on the chemistry-biology boundary, eg. fermentation chemistry, plant tissue culture investigations etc., are accepted into the journal. Natural Product Research issues will be subtitled either ""Part A - Synthesis and Structure"" or ""Part B - Bioactive Natural Products"". for details on this , see the forthcoming articles section. All manuscript submissions are subject to initial appraisal by the Editor, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. All peer review is single blind and submission is online via ScholarOne Manuscripts.
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