N. Ohta et al., STEREOSELECTIVE REACTIONS OF RO-2,3-DIDEOXY-3-NITRO-BETA-D-HEXOPYRANOSYL)URACIL WITH SOME NUCLEOPHILES, Nucleosides & nucleotides, 15(4), 1996, pp. 833-855
Michael addition of benzylamine, piperidine, morpholine, pyrrolidine,
cyclohexylamine, allylamine and dimethylmalonate to the nitroolefin (5
) generated in situ from idene-3-deoxy-3-nitro-beta-D-glucopyranosyl)u
racil (4b) gave the corresponding ted-amino)-3-deoxy-3-nitro-beta-D-gl
ucopyranosides (6a-f and 6h). Reaction of 4b with N,N'-carbonyldiimida
zole directly gave 6g. Compound 4b was converted into the 2-deoxy anal
ogue (8), which was reduced to the 3-amino (9) and 3-hydroxylamino ana
logue (10).