Tetrahedron p. 14369 - 14380 (1997)
Update date:2022-09-26
Topics:
Badalassi, Fabrizio
Crotti, Paolo
Favero, Lucilla
Macchia, Franco
Pineschi, Mauro
The monosaccharide component (α and β-anomer) of the E Ring of calicheamicin γ1(I) and esperamicin A1 has been synthetized by an efficient and improved stereoselective procedure starting from methyl 2-deoxy-α- and β-D-ribopyranoside. The synthetic procedure makes use, in each case, of a cyclic sulphate and of the regioselective ring opening of an intermediate activated aziridine.
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