English(1,3-Dioxan-4-yl)-substituted nucleoside analogues, higher homologues of antiviral and anticancer 1,3-dioxolanes, were prepared from the key intermediate (4-acetoxy-1,3-dioxan-2-yl)methyl benzoate and silylated bases. Glycosylation, carried out under Vorbrüggen conditions in the presence of trimethylsilyltrifluoromethanesulfonate (TMSOTf) as a catalyst, afforded the desired compounds with high stereoselectivity and regioselectivity, with only the desired β-anomeric N-1 pyrimidine and N-9 purin nucleosides being obtained. 1H NMR experiments established that the β-anomers were diequatorial, and this assignment was confirmed by singlecrystal X-ray diffraction. Despite their structural similarities with natural nucleosides, none of the synthesized nucleosides showed antiviral activity.
Diastereoselective Synthesis of (1,3-Dioxan-4-yl)pyrimidine and Purin Nucleoside Analogues / Battisti, Umberto M.; Sorbi, Claudia; Quotadamo, Antonio; Franchini, Silvia; Tait, Annalisa; Schols, Dominique; Jeong, Lak Shin; Lee, Sang Kook; Song, Jayoung; Brasili, Livio. - In: EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. - ISSN 1434-193X. - STAMPA. - 2015:6(2015), pp. 1235-1245.
| Data di pubblicazione: | 2015 |
| Titolo: | Diastereoselective Synthesis of (1,3-Dioxan-4-yl)pyrimidine and Purin Nucleoside Analogues |
| Autore/i: | Battisti, Umberto M.; Sorbi, Claudia; Quotadamo, Antonio; Franchini, Silvia; Tait, Annalisa; Schols, Dominique; Jeong, Lak Shin; Lee, Sang Kook; Song, Jayoung; Brasili, Livio |
| Autore/i UNIMORE: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1002/ejoc.201403473 |
| Rivista: | |
| Volume: | 2015 |
| Fascicolo: | 6 |
| Pagina iniziale: | 1235 |
| Pagina finale: | 1245 |
| Codice identificativo ISI: | WOS:000349972700010 |
| Codice identificativo Scopus: | 2-s2.0-84922884868 |
| Citazione: | Diastereoselective Synthesis of (1,3-Dioxan-4-yl)pyrimidine and Purin Nucleoside Analogues / Battisti, Umberto M.; Sorbi, Claudia; Quotadamo, Antonio; Franchini, Silvia; Tait, Annalisa; Schols, Dominique; Jeong, Lak Shin; Lee, Sang Kook; Song, Jayoung; Brasili, Livio. - In: EUROPEAN JOURNAL OF ORGANIC CHEMISTRY. - ISSN 1434-193X. - STAMPA. - 2015:6(2015), pp. 1235-1245. |
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