Scheme 1.
Synthesis of indole-triazole-amide analogues 3a-h and 5c-g. a) Zn dust, THF, 0°C to rt; b) azide, CuSO4, sodium ascorbate, H2O:tBuOH:DCM (2:2:1); c) NBS, HOAc:HCO2H (3:1), rt.
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