New naphthoquinones and a new δ-lactone produced by endophytic fungi from Costa Rica.
New naphthoquinones and a new δ-lactone produced by endophytic fungi from Costa Rica.
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DOI:
10.1016/j.tetlet.2010.11.159
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发表时间:
2011-04-27
影响因子:
1.8
通讯作者:
Clardy, Jon
中科院分区:
文献类型:
--
作者:
Cao, Shugeng;Clardy, Jon
While searching for compounds with antimalarial activity, two new naphthoquinones, delitzchianones A (1) and B (2), were separated from Delitzchia winteri, an endophytic fungus from Costa Rica. The same search also led to a new 8-acetoxy pestalopyrone (3) and the known compound, pestalopyrone (4) from another Costa Rican endophytic fungus, Phomatospora bellaminuta. The structures of the three new compounds 1, 2 and 3 were established with extensive NMR and MS analyses. All four compounds were tested for activity in a growth / no growth Dd2 assay, but only compound 4 had measurable activity with an IC50 value of 37 μM.
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影响因子:
5.2
作者:
Kontnik, Renee;Clardy, Jon
通讯作者:
Clardy, Jon
影响因子:
3.8
作者:
VENKATASUBBAIAH, P;VANDYKE, CG;CHILTON, WS
通讯作者:
CHILTON, WS
影响因子:
5.2
作者:
Cao, Shugeng;Ross, Leila;Tamayo, Giselle;Clardy, Jon
通讯作者:
Clardy, Jon
影响因子:
3.6
作者:
Singh, SB;Tomassini, JE
通讯作者:
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