4-Methylphenyl isocyanate → 1-[4-(3-Dimethylamino-propoxy)-3-(2-methyl-2H-pyrazol-3-yl)-phenyl]-3-p-tolyl-urea

Participants

Reaction Steps

To a solution of 4-(3-dimethylamino-propoxy)-3-(2-methyl-2H-pyrazol-3-yl)-phenylamine (45.9 mg, 0.167 mmol) in CH2Cl2 (2 mL) was added 4-methylphenyl isocyanate (0.24 μL, 0.191 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 130 as a colorless solid (61.8 mg, 91%). LCMS m/z (%)=408 (MH+) (100), 1H NMR (400 MHz, DMSO-d6) δ: 8.53 (bs, 1H), 8.52 (bs, 1H), 7.44 (d, J=1.77 Hz, 1H), 7.43 (dd, J=8.91, 2.73 Hz, 1H), 7.36 (d, J=2.70 Hz, 1H), 7.31 (d, J=8.43 Hz, 2H), 7.08 (d, J=8.92 Hz, 1H), 7.06 (d, J=8.32 Hz, 2H), 6.23 (d, J=1.82 Hz, 1H), 3.96 (t, J=6.36 Hz, 2H), 3.65 (s, 3H), 2.23 (s, 3H), 2.19 (t, J=7.05 Hz, 2H), 2.07 (s, 6H), 1.77-1.69 (m, 2H).

Provenance & Evidence