کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7768425 | 1500409 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new macrolide and six cycloartane triterpenoids from the tubers of Bletilla striata
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Systematics and Ecology - Volume 57, December 2014, Pages 238-241
Journal: Biochemical Systematics and Ecology - Volume 57, December 2014, Pages 238-241
نویسندگان
Lian Yang, Cheng Peng, Chun-Wang Meng, Cheng-Jun He, Xiao-Hong Li, Li Guo, Qin-Mei Zhou, Liang Xiong,