1-[(5R,6R,7R,9R)-4-氨基-6-(叔丁基-二甲基硅烷基)氧基-9-[(叔丁基-二甲基硅烷基)氧基甲基]-2,2-二氧代-1,8-二氧杂-2-硫杂螺[4.4]壬-3-烯-7-基]-5-甲基嘧啶-2,4-二酮 、
3'-azido-3-N-(3-bromopropyl)-3'-deoxythymidine 在
potassium carbonate 作用下,
以
乙腈 为溶剂,
反应 12.0h,
以69%的产率得到3-[3-[3-[(1R,3R,4R,5R)-6-amino-4-[tert-butyl(dimethyl)silyl]oxy-1-[[tert-butyl(dimethyl)silyl]oxymethyl]-8,8-dioxo-2,9-dioxa-8$l^{6}-thiaspiro[4.4]non-6-en-3-yl]-5-methyl-2,6-dioxo-pyrimidin-1-yl]propyl]-1-[(2R,4S,5S)-4-azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-5-methyl-pyrimidine-2,4-dione