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- Title
Four New Cuparene-Type Sesquiterpenes from Flammulina velutipes.
- Authors
Wang, Ya-Qi; Bao, Li; Yang, Xiao-Li; Dai, Huan-Qin; Guo, Hui; Yao, Xin-Sheng; Zhang, Li-Xin; Liu, Hong-Wei
- Abstract
Flamvelutpenoids A-D ( 1- 4), four new cuparene-type sesquiterpenes, were isolated from the solid culture of Flammulina velutipes. Their structures were elucidated by NMR experiments. The absolute configurations of 1 and 2 were assigned via the circular dichroism data of the [Rh2(OCOCF3)4] complex, whereas that of C(3) of 3 was determined by applying the octant rule for the α, β-unsaturated ketone moiety. Compounds 1- 4 showed weak antibacterial activity against Escherichia coli, Bacillus subtilis, and methicillin-resistant Staphylococcus aureus with MIC values larger than 100 μ M.
- Subjects
SESQUITERPENES; TERPENES; CIRCULAR dichroism; MAGNETIC circular dichroism; NUCLEAR magnetic resonance
- Publication
Helvetica Chimica Acta, 2012, Vol 95, Issue 2, p261
- ISSN
0018-019X
- Publication type
Article
- DOI
10.1002/hlca.201100289