HCID 86704187, compound → HCID 86704200, compound

Participants

Reaction Steps

Tert-butyl-{4-[2-(3-{[(2,5-difluorophenyl)sulfonyl](methoxymethyl)amino}-2-fluorophenyl)-2-oxoethyl]pyridin-2-yl}carbamate (prepared as described in Example 9, 374 mg, 0.662 mmol) was dissolved in dry DMF (5 mL) under argon atmosphere. Pyridinium bromide perbromide (190 mg, 0.596 mmol, 0.9 eq) was added and the reaction mixture was stirred at r.t. for 50 min. 1-Cyclopropylpiperidine-4-carbothioamide (146 mg, 0.794 mmol, 1.2 eq) was then added and the mixture was heated to 70° C. After 1 h the reaction was allowed to cool to r.t. overnight. The solvent was concentrated under reduced pressure. The residue was taken up with ethyl acetate and washed with saturated aqueous NaHCO3 and brine. The organic phase was dried over Na2SO4 and evaporated to dryness. The crude product was purified by flash chromatography on silica gel (DCM/MeOH 98:2) to give 290 mg (60%) of tert-butyl {4-[2-(1-cyclopropylpiperidin-4-yl)-4-(3-{[(2,5-difluorophenyl)sulfonyl](methoxymethyl)amino}-2-fluorophenyl)-1,3-thiazol-5-yl]pyridin-2-yl}carbamate as amorphous solid.

Provenance & Evidence