Scheme 1.
Synthesis of aryltriazolylhydroxamates for SAR studies. Conditions: (a) NH2-O-Trityl, IBCF, THF, −15°C, 2h, (b) 3a–g, CuI, Hunig’s base, THF, rt, (c) BF3.OEt2, THF, rt, 20 min or CH2Cl2, TFA/Thioanisole (1:1), 0°C, 3h. Abbreviation: 3-Bp, 3-biphenyl; DMA, p-N,N-dimethylanilyl; Nap, 6-methoxynapthyl; Ph, phenyl; 3-Py, 3-pyridyl; PyP, 4-pyridylphenyl; 2-Tol, 2-tolyl.