Investigation of stereoselectivities in the coupling reactions of 1-O-methyl-3, 5-di-O-p-toluoyl-2-deoxyribofuranoside with purines and pyrimidines

Add time:07/16/2019    Source:sciencedirect.com

Stereoselectivities in the coupling reaction between 1-O-methyl-3, 5-di-O-p-toluoyl-2-deoxyribofuranoside and suitably protected purine and pyrimidine derivatives have been examined in acetonitrile with varying equivalents of SnCl4. The best result in α-nucleoside formation was obtained when the coupling reaction was carried out in the presence of ten equivalents of SnCl4.

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