4-Nitrobenzyl as a<i>N</i>-Protective Group in<i>N</i>-Heterocycles: An Easy Access to 7-Arylmethyladenines from 3-(4-Nitrobenzyl)-adenine
作者:Abderahman Er-Rhaimini、René Mornet
DOI:10.1055/s-1988-27500
日期:——
The 4-nitrobenzyl group is used as a N-3 protective group in adenine to direct further alkylation (benzylation) at the 7-position. In the obtained 7-arylmethyl-3-(4-nitrobenzyl)adenines, this protective group is removed, presumably as quinonimine methide, by reduction of the nitro group by the use of sodium dithionite, thus leaving 7-arylmethyladenines.
在腺嘌呤中,4-硝基苄基被用作 N-3 保护基,以指导 7 位的进一步烷基化(苄基化)。在得到的 7-芳基甲基-3-(4-硝基苄基)腺嘌呤中,通过使用亚硫酸氢钠还原硝基,去除保护基(可能是醌亚胺甲酰胺),从而得到 7-芳基甲基腺嘌呤。