Ethanesulfonamide → Ethanesulfonic acid [2-(3-{6-[2-(2,4-dichloro-phenyl)-ethylamino]-2-methoxy-pyrimidin-4-yl}-phenyl)-2-methyl-propionyl]-amide

Participants

Reaction Conditions

Reaction Steps

N-(3-dimethylaminopropyl)-N-ethylcarbodimide hydrochloride (44 mg, 0.23 mmol) is added to a stirred ice cold solution of 2-(3-{6-[2-(2,4-dichloro-phenyl)-ethylamino]-2-methoxy-pyrimidin-4-yl}-phenyl)-2-methyl-propionic acid (100 mg, 0.22 mmol), ethanesulfonamide (25 mg, 0.23 mmol) and 4-Dimethylaminopyridine (27 mg, 0.22 mmol) in dry DCM under nitrogen atmosphere. The ice bath is removed and the reaction mixture is stirred overnight at 60° C. The volatiles are removed under reduced pressure, the residue is dissolved in ethyl acetate, washed with 0.1 N HCl, brine and water, dried over sodium sulfate, filtered and concentrated under reduced pressure. The crude residue is purified by chromatography (SiO2 packed column), eluting with EtOAc/DCM to afford ethanesulfonic acid [2-(3-{6-[2-(2,4-dichloro-phenyl)-ethylamino]-2-methoxy-pyrimidin-4-yl}-phenyl)-2-methyl-propionyl]-amide [67 mg, Example 95(a)]. LCMS: RT=2.49 minutes, MS: 551, 553 (M+H).

Provenance & Evidence