Lyngbyastatins 8-10, elastase inhibitors with cyclic depsipeptide scaffolds isolated from the marine cyanobacterium Lyngbya semiplena.

Lyngbyastatins 8-10, elastase inhibitors with cyclic depsipeptide scaffolds isolated from the marine cyanobacterium Lyngbya semiplena.
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DOI:
10.3390/md7040528
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发表时间:
2009-11-03
期刊:
影响因子:
5.4
通讯作者:
Luesch H
Luesch H
中科院分区:
医学2区
文献类型:
--
作者:
Kwan JC;Taori K;Paul VJ;Luesch H

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对从关岛杜蒙湾收集的海洋蓝细菌半舌囊藻(Lyngbya semipelena)的提取物的研究导致鉴定出三种新的环缩肽,lyngbyastatin 8-10(1-3)。化合物1-3的结构经NMR、MS、ESIMS裂解和化学降解确定。化合物1-3与lyngbyastatin 4-7密切相关。与后者化合物一样,我们发现1-3抑制猪胰腺弹性蛋白酶,IC 50值分别为123 nM、210 nM和120 nM。
Investigation of an extract from the marine cyanobacterium Lyngbya semiplena, collected in Tumon Bay, Guam, led to the identification of three new cyclodepsipeptides, lyngbyastatins 8–10 (1–3). The structures of 1–3 were determined by NMR, MS, ESIMS fragmentation and chemical degradation. Compounds 1–3 are closely related to lyngbyastatins 4–7. Like the latter compounds, we found 1–3 to inhibit porcine pancreatic elastase, with IC50 values of 123 nM, 210 nM and 120 nM, respectively.
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