کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1389559 | 982894 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The first total synthesis of 7-O-β-d-glucopyranosyl-4′-O-α-l-rhamnopyranosyl apigenin via a hexanoyl ester-based protection strategy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The first total synthesis of 7-O-β-d-glucopyranosyl-4′-O-α-l-rhamnopyranosyl apigenin 1, which exhibits good anti-hepatitis B virus and anti-stroke activities, was accomplished in six steps and 20% overall yield from apigenin. Another synthetic route, in which the target was obtained in seven steps, was also developed to prove the utility of a hexanoyl ester-based orthogonal protection strategy. The hexanoyl protection strategy provided all the flavonoid intermediates with good solubility and reactivity, enabled efficient selective protection and glycosylation, and provided a practical and effective synthetic strategy for flavonoids, starting from commercially available flavone.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Research - Volume 344, Issue 4, 10 March 2009, Pages 511–515
Journal: Carbohydrate Research - Volume 344, Issue 4, 10 March 2009, Pages 511–515
نویسندگان
Qi Gao, Gaoyan Lian, Feng Lin,