Synthesis of dendritic oligodeoxyribonucleotide analogs with nonionic diisopropylsilyl linkage
作者:Jin-Liang Lv、Zhi-Yong Zhao、Zhong-Qiang Yang、Dong-Sheng Liu、Qing-Hua Fan
DOI:10.1016/j.tet.2011.09.108
日期:2011.11
Series of new dendritic oligodeoxyribonucleotide analogs with diisopropylsilyl linkage were prepared via liquid-phase synthesis. Dendron was employed as soluble support, which facilitated purification of the products by simple solvent precipitation. Sequences leading to the dendritic octamer 5'-TSiTSiTSiTSiTSiT-(Si)T(Si)T(S)2-3' (T8D(2)) were prepared and each isolated intermediate was characterized by NMR and mass spectrometry. The recognition properties of two complementary dendritic dinucleotide analogs of TSiTSiD2 (T2D2) and A(Si)A(Si)D(2) (A2D(2)) were also studied by NMR and FT-MS spectra in a nonaqueous aprotic environment (C) 2011 Elsevier Ltd. All rights reserved.