HCID 23582736, compound → HCID 23582737, compound

Participants

Reaction Steps

To a solution of (R)-1-(1-(3-acetyl-5-fluorophenyl)-1-(4-fluoro-3-(trifluoromethyl)phenyl)-2-phenylethyl)-3-(2,2,2-trifluoroethyl)urea (Example 257, 20 mg, 0.037 mmol) in THF (1 mL) at 0° C. under argon was added dropwise CH3Li (1.4 M in Et2O, 0.04 mL, 0.056 mmol.). The reaction mixture was stirred at room temperature for 2 h, then quenched with sat. NH4Cl and 0.5 N HCl and the aqueous layer was extracted with EtOAc. The combined organic portions were washed with H2O, sat. NaCl, dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified by flash chromatography (silica gel, hexanes/EtOAc) to give (R)-1-(1-(4-fluoro-3-(trifluoromethyl)phenyl)-1-(3-fluoro-5-(2-hydroxypropan-2-yl)phenyl)-2-phenylethyl)-3-(2,2,2-trifluoroethyl)urea (Example 258, 8 mg, yield 39%). LCMS: RT=3.89 min [M+H] 559.4 (Phenomenex Luna C18 column, 4.6×50 mm eluting with 10-90% MeOH/H2O over 4 minutes containing 0.1% NH4Cl; 4 mL/min, monitoring at 220 nm). 1H NMR (400 MHz, CDCl3) ppm 7.51-7.45 (m, 2H), 7.21-6.96 (m, 6H), 6.68 (d, J=6.8 Hz, 2H), 6.61 (d, J=9.9 Hz, 1H), 5.43 (s, br, 1H), 5.17 (m, 1H), 4.01 (d, J=13.2 Hz, 1H), 3.85-3.62 (m, 3H), 1.46 (s, 3H), 1.44 (s, 3H).

Provenance & Evidence