2-Fluorophenyl isocyanate → 1-[4-(3-Dimethylamino-propoxy)-3-(2-methyl-2H-pyrazol-3-yl)-phenyl]-3-(2-fluoro-phenyl)-urea

Participants

Reaction Steps

To a solution of 4-(3-dimethylamino-propoxy)-3-(2-methyl-2H-pyrazol-3-yl)-phenylamine (60.6 mg, 0.221 mmol) in CH2Cl2 (2 mL) was added 2-fluorophenyl isocyanate (0.27 μL, 0.240 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 138 as a colorless solid (85.5 mg, 91%). LCMS m/z (%)=412 (MH+) (100), 1H NMR (400 MHz, DMSO-d6) δ: 9.36 (bs, 1H), 8.25 (bs, 1H), 8.15 (dd, J=8.34, 1.52 Hz, 1H), 7.47-7.42 (m, 3H), 7.40 (d, J=2.78 Hz, 1H), 7.31-7.26 (m, 1H), 7.11 (d, J=9.09 Hz, 1H), 7.05-6.99 (m, 1H), 6.25 (d, J=2.02 Hz, 1H), 3.98 (t, J=6.32 Hz, 2H), 3.66 (s, 3H), 2.19 (t, J=7.07 Hz, 2H), 2.07 (s, 6H), 1.77-1.69 (m, 2H).

Provenance & Evidence