Synthesis of N,O-protected derivatives of 2′-O-methylcytidine and of 2′-O-methyl- and N1-methylguanosines
作者:V. A. Gladkaya、Z. V. Levitskaya、A. S. Shalamai、L. S. Usenko、T. A. Dashevskaya
DOI:10.1007/bf00597663
日期:1989.7
Using selective 3′,5′-O-tetraisopropyldisiloxane protection, N-acyl-2′-O-methyl derivatives of cytidine and guanosine and of 2′-O-tetrahydropyranyl-N1-methylguanosine have been synthesized. It has been shown that the spatial screening of the amino groups by the neighboring methyl substituents in N1-methylguanosine leads to its inactivation in acylation, tetrahydropyranylation, and tritylation reactions
使用选择性 3',5'-O-四异丙基二硅氧烷保护,已经合成了胞苷和鸟苷以及 2'-O-四氢吡喃基-N1-甲基鸟苷的 N-酰基-2'-O-甲基衍生物。已经表明,N1-甲基鸟苷中相邻甲基取代基对氨基的空间屏蔽导致其在酰化、四氢吡喃化和三苯甲基化反应中失活。