کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5219766 | 1383367 | 2012 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New alkaloids from the seeds of Strychnos nux-vomica
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
Eight new trace indolomonoterpenic alkaloids (1-8) were isolated from the seeds of Strychnos nux-vomica. Their structures and absolute configurations were determined by extensive analysis of MS, NMR, CD, and ECD. The skeleton of compound 1 is an unprecedented 6/5/6/5/6/6/7 heptacyclic ring system. Compound 2 possesses a 2-pyridone moiety, and has not yet been found in strychnos alkaloids. Compounds 6 and 7 showed neuroprotective activities on PC12 cells with IE 50 values of 0.68-4.81 μM and 0.54-6.50 μM, respectively. The biosynthetic pathway of 1 was also postulated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 68, Issue 16, 22 April 2012, Pages 3288-3294
Journal: Tetrahedron - Volume 68, Issue 16, 22 April 2012, Pages 3288-3294
نویسندگان
Nan Zhao, Li Li, Jun-hong Liu, Peng-yu Zhuang, Shi-shan Yu, Shuang-gang Ma, Jing Qu, Nai-hong Chen, Li-jun Wu,