Ls. Jeong et al., RING CONTRACTION AND REARRANGEMENT OF 4-THIOFURANOSE DERIVATIVES OBSERVED DURING DAST FLUORINATION IN THE SYNTHESIS OF L-2'-UP-FLUORO-4'-THIOTHYMIDINE, Tetrahedron letters, 39(29), 1998, pp. 5201-5204
Ring contraction and rearrangement of 4-thiofuranose derivatives were
observed through the regioselective opening of the episulfonium ion fo
rmed during DAST fluorination in the synthesis of L-2'-''up''-fluoro-4
'-thiothymidine. (C) 1998 Elsevier Science Ltd. Ail rights reserved.