The Synthesis of 2,6-Diamino-9-ß-D-Arabinofuranosylpurine from Vidarabine by the Selective Nitration and Ammonolysis
作者:Ran Xia、Li-Ping Sun、Xi-Ning Yang、Gui-Rong Qu
DOI:10.3184/174751915x14451842184314
日期:2015.11
practical synthesis of 2,6-diamino-9-β-D-arabinofuranosylpurine from the commercially available vidarabine is reported. Treatment of fully protected vidarabine with 2,2,2-trifluoroacetic anhydride and tetrabutylammonium nitrate introduced a –NO2 group in the C2 position in high yield. 2,6-Diamino-9-β-D-arabinofuranosylpurine was synthesised in three steps and 61% total yield after ammonolysis of the –NO2
2,6-diamino-9-β-D-arabinofuranosylpurine 从市售阿糖腺苷中实际合成。用 2,2,2-三氟乙酸酐和四丁基硝酸铵处理完全保护的阿糖腺苷,在 C2 位置以高产率引入 -NO2 基团。2,6-Diamino-9-β-D-arabinofuranosylpurine 在氨解-NO2 并去除苯甲酰基后分三步合成,总产率为61%。