3-Isocyanatobenzonitrile → 1-{3-[2-Chloro-4-(2,4-difluoro-phenylamino)-benzoyl]-4-methyl-phenyl}-3-(3-cyano-phenyl)-urea

Participants

Reaction Conditions

Reaction Steps

Compound 494 (0.03 g, 0.08 mmol) was dissolved in 1,4-dioxan (0.5 mL) and 3-cyanophenyl isocyanate (0.017 g, 0.12 mmol) was added. The solution was stirred at 50° C. for 24 h. 3-Cyanophenyl isocyanate (0.09 g, 0.06 mmol) was added. The solution was stirred at 50° C. for 24 h. Work up as described in the preparation of compound 259. The crude product was purified by flash chromatography using MeOH/CH2Cl2 1:100 as the eluent. This afforded the title compound as yellow oil. 13C NMR (DMSO-d6) δ 195.1, 158.8 (dd), 155.8 (dd), 152.4, 149.2, 140.5, 139.3, 137.0, 133.5, 131.6, 130.2, 130.1, 126.9, 126.5 (dd), 125.4, 124.3 (dd), 123.0, 121.1, 120.8, 118.9, 118.8, 114.9, 112.0 (dd), 111.9, 111.6, 105.1 (dd), 19.1

Provenance & Evidence