Hydrochloric Acid → HCID 59459253, compound

Participants

Reaction Conditions

Reaction Steps

At 0° C. under argon, to a solution of (R)-1-(1-(4-fluoro-3-(trifluoromethyl)phenyl)-1-(3-fluoro-5-(1,1,2,2-tetrafluoroethoxy)phenyl)but-3-enyl)-3-(2,2,2-trifluoroethyl)urea (40 mg, 0.070 mmol), prepared as described in Procedure 6 and 10, in dry toluene (1 mL) was added diethyl Zinc (1.0 M in hexane, 1.2 mL, 1.2 mmol), followed by dropwise addition of diiodomethane (0.2 mL). The reaction mixture was gradually warmed to 110° C., and heated at 110° C. for 1 h. After cooling, 1 N HCl was added and the reaction mixture was stirred at room temperature for 5 min. The reaction mixture was extracted with EtOAc and the organic layer was washed with H2O, sat. NaHCO3, sat. NaCl, dried over Na2SO4, filtered and concentrated. The residue was purified by Prep HPLC (phenomenex AXIA Luna 75×30 mm, 5 u column eluting with 50-100% MeOH in H2O with 0.1% TFA, 40 mL/min, monitoring at 220 nm) to give (R)-1-(2-cyclopropyl-1-(4-fluoro-3-(trifluoromethyl)-phenyl)-1-(3-fluoro-5-(1,1,2,2-tetrafluoroethoxy)phenyl)ethyl)-3-(2,2,2-trifluoroethyl)urea (Example 317) as white solid (13 mg, yield 32%). LCMS: RT=3.26 min [M+H] 583.2 (Phenomenex Luna C18 column, 4.6×50 mm eluting with 50-90% MeOH/H2O over 4 minutes containing 0.1% TFA; 4 mL/min, monitoring at 220 nm). 1H NMR (400 MHz, CDCl3) δ ppm 7.55 (d, J=6.6 Hz, 1H), 7.46 (m, 1H), 7.12 (t, J=9.3 Hz, 1H), 6.94-6.85 (m, 3H), 5.84 (tt, J=52.8, 2.8 Hz, 1H), 5.61 (br, s, 1H), 4.78 (br, t, J=6.1 Hz, 1H), 3.69 (m, 2H), 2.31 (m, 2H), 0.36 (m, 3H), 0.00 (m, 2H).

Provenance & Evidence