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