Sodium Hydroxide → HCID 18537537, compound

Participants

Reaction Steps

(Scheme 1, (C)) To a solution of 7-[4,5-Bis-(4-fluoro-phenyl)-2-methyl-imidazol-1-yl]-heptanoic acid ethyl ester (1.9 g, 4.4 mmol) in EtOH (10 mL) was added NaOH (10 N, 2 mL, 20 mmol). The resulting mixture was stirred at rt for 1 hour, diluted with EtOAc (100 mL), washed by HCl (0.5 N), and then was dried over MgSO4. After filtration and concentration in vacuo, the residue was purified by flash chromatography (SiO2: MeOH/CH2Cl2). This compound was obtained as a white solid in HCl salt form (1.9 g, 4.3 mmol, 98% yield): 1H NMR (DMSO): δ1.15 (m, 4H), 1.37 (t, 2H), 1.47 (t, 2H), 2.13 (t, 2H), 2.73 (s, 3H), 4.03 (t, 2H), 7.35 (t,2H), 7.45 (m, 4H), 7.57 (m, 2H), 12.1 (b, 1H).

Provenance & Evidence