作者:Zhen-Dan Shi、Bing-Hui Yang、Yu-Lin Wu
DOI:10.1016/s0040-4020(02)00230-2
日期:2002.4
inexpensive d-galactose from the chiral pool, l-deoxyribose, l-ribose and their derivatives were synthesized via mild reaction conditions. During the synthesis of l-deoxyribose, the key deoxygenation of the 2-hydroxy group of 3,5-O-dibenzyl-methyl-l-arabinofuranoside was performed by reduction of the corresponding triflate with tetrabutylammonium borohydride in high yield. During the synthesis of l-ribose, the
使用来自手性库的廉价d-半乳糖,通过温和的反应条件合成了l-脱氧核糖,l-核糖及其衍生物。在1-脱氧核糖的合成过程中,通过高产率地用四丁基硼氢化铵还原相应的三氟甲磺酸酯,进行3,5- O-二苄基-甲基-1-阿拉伯呋喃糖苷的2-羟基的关键脱氧。在L-核糖的合成,2-羟基反演在同一衬底中的关键步骤是通过分子内小号进行Ñ 2串联反应。然后根据Vorbrüggen的条件对L-核糖基供体进行糖基化反应,得到L-核糖苷(L-尿苷,L-5-氟尿苷,L-碘尿苷,L-胸苷,L-吡啶,L-腺苷和L-鸟苷)高产。