کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2028741 1070440 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
New phytoecdysteroids from cultured plants of Ajuga nipponensis Makino
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
New phytoecdysteroids from cultured plants of Ajuga nipponensis Makino
چکیده انگلیسی

An extract from aerial parts of Ajuga nipponensis Makino was examined by high performance liquid chromatography for minor ecdysteroids. Along with the compounds already reported, namely cyasterone, ajugasterone C, cyasterone 22-acetate and 22-dehydrocyasterone, the presence of three additional bands with the expected ecdysteroid-like UV absorption was observed. The structures of the isolates were unambiguously elucidated based on extensive NMR spectral studies (one and two-dimensional experiments) and pointed out three new phytoecdysteroids. One of the new compounds, 22-dehydrocyasterone 2-glucoside is just the second example of a C-2 glucosyl derivative. The other two compounds displayed hemiacetal functions in the side chain, one unprecedented, and were named ajugacetalsterone A and B.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Steroids - Volume 72, Issue 3, March 2007, Pages 270–277
نویسندگان
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