Acetic Acid → HCID 18545645, compound

Participants

Reaction Steps

A solution of 4-(2-(4-allyloxycarbonylpiperazin-1-yl)pyridin-5-yl)-N-(3,4,5-trichlorophenyl)-2-pyrimidineamine (170 mg,0.33 mmol) in dichloromethane and DMF (3 ml,1:1 mixture) was stirred with acetic acid (1 ml), dichlorobis(triphenylphosphine)palladium (II) (15 mg) and tri-n-butyltin hydride at room temperature for 5 min. The reaction was added to a saturated aqueous NaHCO3 solution, which was extracted with ethyl acetate. The organic phase was dried (MgSO4) and concentrated under reduced pressure. The residue was triturated with hexane and then subjected to column chromatography (silica gel with 1% ammonium hydroxide-8% methanol-dichloromethane) to give the title compound (60 mg) as an off-white solid m.p. 208-211°. δH(d6 DMSO) 10.03(1H, s), 8.91 (1H, d, J 2.5 Hz), 8.51 (1H, d, J 5.4 Hz), 8.22 (1H, dd , J 9.1, 2.5 Hz),8.16 (2H, s), 7.43 (1H, d, J 5.4 Hz), 3.56 (4H, m) and 2.78 (4H, m).

Provenance & Evidence