Water → HCID 59608077, compound

Participants

Reaction Steps

3.1 200 mg (0.533 mmol) of 2-[3-(2,6-dimethylphenylamino)-6-fluoroimidazo[1,2-a]pyridin-2-yl]benzoic acid, 56 mg (0.533 mmol) of 4-methyl-3-thiosemicarbazide and 125 mg (0.650 mmol) of DAPECI are dissolved in 1 ml of DMF and stirred at RT for 2 hours. The mixture is subsequently added to water, the precipitated solid is filtered off with suction and dried, giving 117 mg (47%) of 1-{2-[3-(2,6-dimethylphenylamino)-6-fluoro-imidazo[1,2-a]pyridin-2-yl]benzoyl}-4-methyl-3-thiosemicarbazide as solid; MS-FAB (M+H+)=463.7; Rf (HPLC, polar method): 1.69 min. This is employed in the next step without further purification.

Provenance & Evidence