کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
70727 | 48843 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regio-selective acylation of biologically important iridoid glycosides by Candida antarctica lipase
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Lipase catalyzed regio-selective acylation of five iridoid glycosides viz., picroside I&II, catalpol, agnuside and negundoside in the presence of various acyl donors such as vinyl acetate and p-nitrophenyl alkanoates was studied. The regio-selectivity of enzymatic acylation and yields were found to vary amongst different substrates. Monoacylated products were isolated with all the substrates under scrutiny indicating high regio-selective nature of such transformations. A series of acyl esters of picroside-I, picroside-II, catalpol, agnuside and negundoside have been synthesized by this enzymatic trans-esterification methodology.
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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis B: Enzymatic - Volume 56, Issue 1, January 2009, Pages 46–54
Journal: Journal of Molecular Catalysis B: Enzymatic - Volume 56, Issue 1, January 2009, Pages 46–54
نویسندگان
Parvinder Pal Singh, Naveed Ahmed Qazi, Syed Shafi, D. Mahendhar Reddy, Abid H. Banday, P. Bhaskar Reddy, K.A. Suri, B.D. Gupta, N.K. Satti, Basant P. Wakhloo, H.M. Sampath Kumar, G.N. Qazi,