An efficient approach to the synthesis of thymidine derivatives containing phosphate-isosteric methylene acetal linkages
作者:G.H. Veeneman、G.A. Van Der Marel、H. Van Den Elst、J.H. Van Boom
DOI:10.1016/s0040-4020(01)86429-2
日期:1991.1
judicious choice of the iodoinium source and protecting groups led to an efficient preparation of thymidine dimers having internucleosidic-3′5′)-methylene bonds. The latter procedure was utilized towards the synthesis, in solution and on a solid support, of DNA-fragments containing one or more T-CH2-T dimers. Further, 5′-O-methylthiomethyl-3′-O-methoxyacetyl-N3-benzoyl-thymidine proved to be a suitable
探索了碘鎓离子促进了适当保护的3'- O-甲硫基甲基或3' - O-(4-戊烯-1-氧甲基)-胸苷与3' - O-甲氧基乙酰基胸苷的缩合。对碘鎓源和保护基的明智选择导致有效制备具有核苷间3'5')-亚甲基键的胸苷二聚体。后一种方法用于在溶液中和在固体支持物上合成含有一个或多个T- CH 2 -T二聚体的DNA片段。此外,事实证明5'- O-甲硫基甲基-3'- O-甲氧基乙酰基-N 3-苯甲酰基胸苷是引入5'- O的合适供体。在2,3,4,6-四-O-苄基-D-葡萄糖,苄基N-苄氧羰基-L-丝氨酸和磷酸二苄酯之间的-亚甲基缩醛键。