6-(2-Alkylimidazol-1-yl)purines Undergo Regiospecific Glycosylation at N9
摘要:
Regioselective control of glycosylation of purines at N9 (versus N7) has been a continuing challenge. We now report Lewis acid catalyzed regiospecific glycosylations of 6-(2-alkylimidazol-1-yl)purines at N9. The 6-(2-alkyl)imidazole moiety also functions as a versatile leaving group that can be replaced by nucleophiles (SNAr) and aryl groups (Suzuki cross-coupling).
6-(2-Alkylimidazol-1-yl)purines Undergo Regiospecific Glycosylation at N9
摘要:
Regioselective control of glycosylation of purines at N9 (versus N7) has been a continuing challenge. We now report Lewis acid catalyzed regiospecific glycosylations of 6-(2-alkylimidazol-1-yl)purines at N9. The 6-(2-alkyl)imidazole moiety also functions as a versatile leaving group that can be replaced by nucleophiles (SNAr) and aryl groups (Suzuki cross-coupling).
6-(2-Alkylimidazol-1-yl)purines Undergo Regiospecific Glycosylation at N9
作者:Minghong Zhong、Ireneusz Nowak、Morris J. Robins
DOI:10.1021/ol051573p
日期:2005.10.1
Regioselective control of glycosylation of purines at N9 (versus N7) has been a continuing challenge. We now report Lewis acid catalyzed regiospecific glycosylations of 6-(2-alkylimidazol-1-yl)purines at N9. The 6-(2-alkyl)imidazole moiety also functions as a versatile leaving group that can be replaced by nucleophiles (SNAr) and aryl groups (Suzuki cross-coupling).