Water → HCID 58760610, compound

Participants

Reaction Steps

To a solution of Example H (1.50 g, 5.55 mmol) in dry THF (10 mL) was added a THF solution (10 mL) of 4-chlorophenyl isocyanate (1.02 g, 6.66 mmol) and pyridine (5.27 g, 66.6 mmol) at RT. The reaction mixture was stirred for 3 h and then H2O (30 mL) was added. The precipitate was filtered and washed with 1N HCl and ether to give 1-{3-tert-butyl-1-[3-(aminomethyl)phenyl}-1H-pyrazol-5yl)-3-(4-chlorophenyl)urea (2.28 g, 97%) as a white solid, which was used for next step without further purification. MS (ESI) m/z: 424 (M+H+).

Provenance & Evidence