p-Toluenesulfonic acid → HCID 136351519, compound

Participants

Reaction Steps

To a suspension of 1-[3-(7-Formyl-imidazo[1,2-a]pyridin-3-yl)-phenyl]-3-(2,2,2-trifluoro-ethyl)-urea (50 mg, 0.14 mmol) in toluene (5 ml) was added hydroxylamine hydrochloride (11 mg, 0.15 mmol) and triethylamine (21 μl, 0.15 mmol). The reaction mixture was stirred for 10 min before tosic acid (3 mg, 0.014 mmol) was added and then stirred for a further 18 h. The resulting precipitate was filtered off and washed with Et2O to give the product (23 mg). MS: [M+H]+ 378.

Provenance & Evidence