Abstract
Using 3-O-methyl-D-chiro-inositol as starting material, the title compound 5 was synthesized by con-densation of adenine and methanesulfonate 3. Additionally, compounds 8 and 9 were prepared through the opening of the epoxide ring in 7 by adenine. The key intermediate 7 was obtained in good yield via an epoxida-tion from mono-mesylate 6. The process of opening of epoxide ring appeared to be regioselective in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU).
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