N-Carbamate fluorous tags for amino sugars.89,90 Part A: Reagents and conditions (a) NaHCO3, H2O; (b) Ac2O, pyr; (c) NH2NH2·AcOH, DMF, 20 min, rt, 98%; (d) TDSCl, Imidazole, DMAP, DCM, 12 h, rt, 90%; (e) MeONa, MeOH, 2 h, rt; (f) benzaldehyde dimethyl acetal, CSA, MeCN, 3 h, rt; (g) TMSOTf, DCM, 45 min, −20 °C; (h) Zn, Ac2O, TEA. Part B: Reagents and conditions (a) TEA, DCM, 18 h; (b) p-MeOC6H4OH, BF3·OEt2, DCM, 3 h; (c) Na, MeOH, 3 h; (d) PhCH(OMe)2, PTSA, MeCN, 12 h; (e) BOMCl, DIPEA, DMAP, DCM, 50 °C, 14 h; (f) 6 M, aq. NaOH, THF, 60 °C, 48 h; (g) TEA, Ac2O, DCM, 12 h.