Depsipeptides from a Guamanian Marine Cyanobacterium, Lyngbya bouillonii, with Selective Inhibition of Serine Proteases.

Depsipeptides from a Guamanian Marine Cyanobacterium, Lyngbya bouillonii, with Selective Inhibition of Serine Proteases.
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DOI:
10.1016/j.tetlet.2010.10.062
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发表时间:
2010-12-22
影响因子:
1.8
通讯作者:
Williams, Philip G.
Williams, Philip G.
中科院分区:
化学4区
文献类型:
--
作者:
Rubio, Brent K.;Parrish, Stephen M.;Yoshida, Wesley;Schupp, Peter J.;Schils, Tom;Williams, Philip G.

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Bouillomides A (1) and B (2) are two depsipeptide analogues of dolastatin 13. Isolated from a Guamanian sample of Lyngbya bouillonii, the planar structures were elucidated on the basis of HR-ESI-MS and NMR data, while the absolute configurations were determined by employing functional group conversions, modified Marfey’s analysis, and detailed analyses of ROESY correlations. Compounds 1 and 2 selectively inhibited serine proteases elastase (IC50 = 1.9 μM for both) and chymotrypsin (IC50 = 0.17 and 9.3 μM, respectively) while showing no inhibition of trypsin (IC50 > 100 μM).
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