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. Author manuscript; available in PMC: 2017 Oct 4.
Published in final edited form as: Angew Chem Int Ed Engl. 2016 Sep 14;55(41):12850–12853. doi: 10.1002/anie.201606116

Scheme 1.

Scheme 1

Synthesis of the Key Disaccharide Building Blocks 3 and 8. (TCA = trichloroacetyl, AgOTf = silver trifluoromethanesulfonate = silver triflate, TMU = 1,1,3,3-tetramethylurea, PMP = p-methoxyphenyl, PMB = p-methoxybenzyl, CSA = 10-camphorsulfonic acid, MS = molecular sieves, DMF = N,N-dimethylformamide, DME = 1,2-dimethoxyethane, THF = tetrahydrofuran).