A new macrolide and six cycloartane triterpenoids from the tubers of Bletilla striata

作者：Yang, Lian; Peng, Cheng; Meng, Chun-Wang; He, Cheng-Jun; Li, Xiao-Hong; Guo, Li; Zhou, Qin-Mei; Xiong, Liang^*

来源：Biochemical Systematics and Ecology, 2014, 57: 238-241.

DOI：10.1016/j.bse.2014.08.020

• Bletilla striata
• Orchidaceae
• Macrolide
• Cycloartane triterpenoids
• Chemotaxonomy

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, 20 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.

• 出版日期2014-12
• 单位成都中医药大学