Methyl 6-chloropyridine-3-carboxylate → HCID 178498148, compound

Participants

Reaction Steps

0.5 g (4.5 mmol) of histamine and 0.77 g (4.5 mmol) of 6-chloro-3-carbomethoxypyridine are stirred with potassium bicarbonate in 20 ml of tetrahydrofuran at 21° C. for 24 h and then heated at reflux for 24 h. The mixture is evaporated and the white solid residue is chromatographed through silica gel, using a chloroform/methanol (4/1) mixture as eluent. The fractions containing the pure product are combined and evaporated and the resulting oily residue is treated with a methanol solution of oxalic acid. Addition of ether provides the title compound in the form of the oxalate salt, M.p.: 209°-210° C. C12H14N4O2.1.7C2H2O4

Provenance & Evidence