Chlorophenyl isocyanate → 1-(2-Chloro-phenyl)-3-[4-(3-dimethylamino-propoxy)-3-(2-methyl-2H-pyrazol-3-yl)-phenyl]-urea

Participants

Reaction Steps

To a solution of 4-(3-dimethylamino-propoxy)-3-(2-methyl-2H-pyrazol-3-yl)-phenylamine (51.4 mg, 0.187 mmol) in CH2Cl2 (2 mL) was added 2-chlorophenyl isocyanate (0.25 μL, 0.207 mmol) and stirred for two hours. The resulting material was purified by solid phase extraction (SCX, 1 gram cartridge), eluting with methanol (30 mL) followed by 2M NH3 in methanol (30 mL). The NH3 containing fractions were dried in vacuo to afford Compound 140 as a colorless solid (76.5 mg, 95%). LCMS m/z (%)=428 (M+H35Cl, 100), 430 (M+H37Cl, 37) 1H NMR (400 MHz, DMSO-d6) δ: 9.36 (bs, 1H), 8.25 (bs, 1H), 8.15 (dd, J=8.33, 1.48 Hz, 1H), 7.48-7.42 (m, 3H), 7.40 (d, J=2.70 Hz, 1H), 7.31-7.26 (m, 1H), 7.11 (d, J=8.92 Hz, 1H), 7.05-6.99 (m, 1H), 6.25 (d, J=1.84 Hz, 1H), 3.98 (t, J=6.36 Hz, 2H), 3.66 (s, 3H), 2.19 (t, J=7.04 Hz, 2H), 2.07 (s, 6H), 1.77-1.69 (m, 2H).

Provenance & Evidence