Figure 3
Synthesis of the NAG-NAM disaccharide. Reagents and conditions: (a) Et3SiH, I2, 0°C, 2 h; (b) AgTf, RT, 18 h; (c) NaOMe, MeOH, RT, 1 h; hydrazine hydrate, EtOH, 80°C, 2 h; pyridine, acetic anhydride, RT, 18 h; (d) 0.5 M KOH, dioxane, RT, 48 h; H2, Pd/C, EtOH:HOAc:water; RT, 18 h. |