کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5218904 | 1383341 | 2013 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Diversity oriented efficient access of trisubstituted purines via sequential regioselective Mitsunobu coupling and SNAr based C6 functionalizations
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
An efficient protocol for the syntheses of diverse 2,6,7- and 2,6,9-trisubstituted purines is reported starting from the guanine precursor, 2-amino-6-chloropurine nucleoside through subsequent regioselective, high yielding Mitsunobu coupling and nucleophilic substitutions at C6 with versatile primary and secondary amines. A wide range of 2,6,7- and 2,6,9-trisubstituted purines were accessible in good to excellent yields with remarkable functional group tolerance. Moreover, solvent-free, large scale synthesis of precursors 2 & 3 and facile preparation of organophosphorus side chains 4 & 5 were also accomplished with excellent yields.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tetrahedron - Volume 69, Issue 2, 14 January 2013, Pages 680-691
Journal: Tetrahedron - Volume 69, Issue 2, 14 January 2013, Pages 680-691
نویسندگان
Atul Manvar, Anamik Shah,