Cesium carbonate → Benzyl 4-{[(5-fluoro-pyrimidin-2-yl)amino]methyl}piperidine-1-carboxylate

Participants

Reaction Conditions

Reaction Steps

A stirred mixture of benzyl 4-(aminomethyl)piperidine-1-carboxylate (EXAMPLE 13, STEP 1) (10.0 g, 0.040 mol), 2-chloro-5-fluoropyrimidine (5.3 g, 0.040 mol) and cesium carbonate (26.2 g, 0.081 mol) in DMF (100 mL) was heated at 100° C. for 2 h. The reaction mixture was cooled to rt, diluted with ethyl acetate (400 mL), washed with aqueous saturated NaHCO3 (100 mL), water (5×100 mL), and brine (50 mL), dried over anhydrous Na2SO4, filtered and concentrated. The residue was chromatographed on silica gel 60 (0.5 kg), eluting with 50–100% ethyl acetate in hexane to give the title compound. M.S. (M+1): 345.

Provenance & Evidence