| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7768425 | Biochemical Systematics and Ecology | 2014 | 4 Pages |
Abstract
A new 12-membered macrolide (1) along with two known C-31 and four known C-32 cycloartane triterpenoids (2-7) were isolated from the tubers of Bletilla striata. Their structures were determined by spectroscopic analysis, including 1D NMR, 2D NMR, and HRESIMS. The chemotaxonomic significance of these isolates, especially C-31 and C-32 cycloartane triterpenoids, are discussed. To our knowledge, this is the first report on the co-occurrence of the unusual 24-methyl, 24-ethyl, and 24,24-dimethyl cycloartane triterpenoids in the family Orchidaceae.
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Authors
Lian Yang, Cheng Peng, Chun-Wang Meng, Cheng-Jun He, Xiao-Hong Li, Li Guo, Qin-Mei Zhou, Liang Xiong,