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Dragmacidin F:: A new antiviral bromoindole alkaloid from the mediterranean sponge Halicortex sp.
被引:98
|作者:
Cutignano, A
[1
]
Bifulco, G
[1
]
Bruno, I
[1
]
Casapullo, A
[1
]
Gomez-Paloma, L
[1
]
Riccio, R
[1
]
机构:
[1] Univ Salerno, Dipartimento Sci Farmaceut, I-84084 Salerno, Italy
来源:
关键词:
alkaloids;
antivirals;
indoles;
marine metabolites;
D O I:
10.1016/S0040-4020(00)00281-7
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A new bromoindole alkaloid, named dragmacidin F (1) and structurally related to other dragmacidins previously described, was isolated from a marine sponge of the genus Halicortex collected off the southern coast of Ustica Island (Italy). Structural elucidation of 1 was achieved by an extensive spectroscopic study (mainly by 1D/2D-NMR and MS techniques). Compound 1, containing an unprecedented carbon skeleton that is very likely derived from cyclization of a partially oxidized form of dragmacidin D (2), showed in vitro antiviral activity against HSV-1 (EC50=95.8 mu M) and HIV-1 (EC50=0.91 mu M), thus proving to be responsible for the antiviral property exhibited by Halicortex extracts. (C) 2000 Elsevier Science Ltd. All rights reserved.
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页码:3743 / 3748
页数:6
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