反应详情

Add 4-{4-bromo-1-[2-(tetrahydro-pyran-2-yloxy)-ethyl]-1H-imidazol-2-yl}-piperidine-1-carboxylic acid tert-butyl ester (13.2 g; 0.029 mol; 1.0 equiv), p-toluene sulphonic acid (6.5 g; 0.034 mol; 1.2 equiv) to methanol (200 mL) and stir at RT for 30 min. Concentrate and partition between saturated NaHCO3 aqueous and EA. Evaporate the organic layer to give the title compound (10.0 g; 93%).

1. concentrationConcentrate
2. custompartition between saturated NaHCO3 aqueous and EA
3. customEvaporate the organic layer