HIEBL, JOHANN;ZBIRAL, ERICH;BALZARINI, JAN;DE, CLERCQ ERIK, J. MED. CHEM., 34,(1991) N, C. 1426-1430
作者:HIEBL, JOHANN、ZBIRAL, ERICH、BALZARINI, JAN、DE, CLERCQ ERIK
DOI:——
日期:——
Synthesis and antiretrovirus properties of 5'-isocyano-5'-deoxythymidine,5'-isocyano-2',5'-dideoxyuridine,3'-azido-5'-isocyano-3',5'-dideoxythymidine, and 3'-azido-5'-isocyano-2',3',5'-trideoxyuridine
作者:Johann Hiebl、Erich Zbiral、Jan Balzarini、Erik De Clercq
DOI:10.1021/jm00108a028
日期:1991.4
were prepared by threedifferentways. In the most direct synthesis3 and 4 were transformed to the 2,3'-anhydro-5'- azidonucleosides 17 and 18 by using TPP/DEAD; following the reaction with TPP/HCO2COCH3 gave 19 and 20. Nucleophilic opening reaction with LiN3 yielded the 3'-azido-5'-formylamino derivatives 21 and 22. Dehydration to 3'-azido-5'-isocyano-3',5'-dideoxythymidine (23) and 3'-azido-5'-isocyano-2'
通过用TPP / DEAD / HN3处理胸苷和2'-脱氧尿苷获得5'-叠氮核苷3和4。将3'-O-甲硅烷基化的5'-叠氮基5'-脱氧胸苷5和相应的2'-脱氧尿苷衍生物6转化成甲酰胺(分别为7和8),并脱水成受保护的5'-异氰基衍生物9和10; 脱保护得到5′-异氰基-5′-脱氧胸苷(11)和5′-异氰基-2′,5′-二脱氧尿苷(12)。胸苷和2'-脱氧尿苷的2,3'-脱水-5'-甲酰胺衍生物(分别为19和20)是通过三种不同的方法制备的。在最直接的合成中,使用TPP / DEAD将3和4转化为2,3'-脱水-5'-叠氮核苷17和18。与TPP / HCO2COCH3反应后,得到19和20。与LiN3的亲核开放反应产生3'-叠氮基-5'-甲酰氨基衍生物21和22。脱水成3'-叠氮基-5'-异氰基-3',5'-二脱氧胸苷(23)和3'-叠氮基-5用甲苯磺酰氯/吡啶获得“-异氰基-2”,3”,