Me. Jung et al., NOVEL LEWIS ACID-CATALYZED REARRANGEMENT OF A SUGAR-BASE HYBRID TO AFFORD AN ANHYDRONUCLEOSIDE, Nucleosides & nucleotides, 17(12), 1998, pp. 2383-2387
Treatment of the sugar-base hybrid 9 with boron trichloride at low tem
perature for 40 h affords the 6,3'-anhydro-2'-deoxyuridine 10 in 40% y
ield (80% based on recovered 9) via a novel structural rearrangement.