Simplicilones A and B Isolated from the Endophytic Fungus Simplicillium subtropicum SPC3.
Simplicilones A and B Isolated from the Endophytic Fungus Simplicillium subtropicum SPC3.
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DOI:
10.3390/antibiotics9110753
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发表时间:
2020-10-29
期刊:
影响因子:
--
通讯作者:
Surup F
中科院分区:
文献类型:
--
作者:
Anoumedem EGM;Mountessou BYG;Kouam SF;Narmani A;Surup F
Two new tetracyclic polyketides with a spirocenter, simplicilones A (1) and B (2) were isolated from the broth-culture of the endophytic fungus Simplicillium subtropicum (SPC3) in the course of our screening for new bioactive secondary metabolites. This endophytoic fungus is naturally harboured in the fresh bark of the Cameroonian medicinal plant Duguetia staudtii (Engl. and Diels) Chatrou. The planar structures of the simplicilones were elucidated by MS and 1D as well as 2D NMR spectroscopic techniques. The relative configuration was assigned by NOESY experiments in conjunction with coupling constants; subsequently, the absolute configurations were assigned by the modified Mosher’s method. The compounds showed weak cytotoxic effects against the cell line KB3.1 (in vitro cytotoxicity (IC50) = 25 µg/mL for 1, 29 µg/mL for 2), but were inactive against the tested Gram-positive and Gram-negative bacteria as well as fungi.
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DOI:
10.1002/chem.202003215
发表时间:
2021-01-18
期刊:
Chemistry (Weinheim an der Bergstrasse, Germany)
影响因子:
--
作者:
Becker K;Pfütze S;Kuhnert E;Cox RJ;Stadler M;Surup F
通讯作者:
Surup F
影响因子:
14.8
作者:
Hoye, Thomas R.;Jeffrey, Christopher S.;Shao, Feng
通讯作者:
Shao, Feng
影响因子:
--
作者:
Roy S;Dutta T;Sarkar TS;Ghosh S
通讯作者:
Ghosh S
影响因子:
3.3
作者:
Wei, De-Ping;Wanasinghe, Dhanushka N.;To-anun, Chaiwat
通讯作者:
To-anun, Chaiwat
影响因子:
2.9
作者:
Halecker, Sandra;Wennrich, Jan-Peer;Schulz, Barbara
通讯作者:
Schulz, Barbara