Abstract
Herein, we report the synthesis and the use of new N-1-dinitrophenyl-inosine based solid supports, in which the C-2 of the purine base is strongly activated toward the attack of N-nucleophiles. The synthesized supports, binding the nucleoside by a 5′- O-monomethoxytrityl function, have been used to accomplish the synthesis of a small library of N-1 alkylated inosine and AICAR derivatives. In addition, cleavage of the 2′-3′ ribose bond of N-1 alkylated inosine derivatives anchored to the supports allowed to prepare a new set of N-1 alkylated-2′,3′-secoinosine derivatives in high yields.
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