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. 2019 Oct 15;25(68):15508–15515. doi: 10.1002/chem.201903327

Scheme 1.

Scheme 1

Synthesis of tetra‐ and hexadecavalent rhamnosylated ABMs. Reagents and conditions: i) Propargyl α‐l‐rhamnopyranoside,21 CuSO4 5 H2O, tris(3‐hydroxypropyltriazolylmethyl)amine (THPTA), NaAsc, DMF/phosphate‐buffered saline (PBS), RT, 1 h; ii) azidoacetic22 or pentynoic acid succinimide ester,23 diisopropylethylamine (DIPEA), DMF, RT, 1 h (see the Supporting Information).