Phosgene → HCID 178522430, compound

Participants

Reaction Steps

Phosgene (20% in toluene) (0.3 ml) was added at 0° C. to a solution of 3-(5-morpholin-4-ylmethyl-1H-benzimidazol-2-yl)-1H-pyrazol-4-ylamine (100 mg, 0.33 mmol) in a mixture of toluene/DCM (1:1). The reaction was stirred at ambient temperature for 1 hour then the excess phosgene was blown off by a stream of nitrogen. Thiomorpholine (35 mg, 0.33 mmol) was added and the reaction was stirred at ambient temperature for 1 hour then at 60° C. for 1 hour. The mixture was then concentrated in vacuo and the residue purified by preparative LC/MS to give thiomorpholine-4-carboxylic acid [3-(5-morpholin-4-ylmethyl-1H-benzoimidazol-2-yl)-1H-pyrazol-4-yl]-amide (LC/MS Polar: Rt 2.58, [M+H]+ 428).

Provenance & Evidence