New Synthesis of 2',3'-Didehydro-2',3'-dideoxynucleosides.
作者:Ahmed E. S. Abdel-Megied、Poul Hansen、Erik B. Pedersen、Carsten M. Nielsen、Hugh Brian Dunford、Nils Åge Frøystein、George W. Francis、Britt Karlsson
DOI:10.3891/acta.chem.scand.45-1060
日期:——
The 3'-iodonucleoside 4 and the 3'-O-methylsulfonylthymidine 9 have been synthesized by condensation of silylated uracils 2 with methyl 5-O-tert-butyldiphensilyl-2,3-dideoxy-3-iodo-D-threo-pentofuran oside (3) and methyl 5-O-tert-butyldiphenylsilyl-2-deoxy-3-methylsulfonyl-D-erythro- pentofuranoside (8), respectively. The nucleoside 4 and 9 produced the corresponding 2',3'-didehydro-2',3'-dideoxynucleosides
3'-碘核苷4和3'-O-甲基磺酰基胸苷9是通过将甲硅烷基化的尿嘧啶2与5-O-叔丁基二苯甲硅烷基-2,3-二脱氧-3-碘-D-苏-戊呋喃糖苷缩合而合成的(3)和甲基5-O-叔丁基二苯基甲硅烷基-2-脱氧-3-甲基磺酰基-D-季戊基呋喃呋喃糖苷(8)。在用甲醇钠处理的消除反应中,核苷4和9产生了相应的2',3'-二氢-2',3'-二脱氧核苷5。化合物5b对HIV-1没有抗病毒活性。