Dimethylformamide → HCID 11444269, compound

Participants

Reaction Steps

DMF (0.22 mL) and ethyl amine (77 μL, 0.15 mmol) were added to 3-(2-{(1S,2R,3S)-3-[4-(4-Cyclohexyl-butylcarbamoyl)-oxazol-2yl]-7-oxa-bicyclo[2.2.1]hept-2-ylmethyl}-4-fluoro-phenyl)-propionic acid (1) (28 mg, 0.053 mmol), EDCI [1-(3-dimehylaminopropyl)-3-ethylcarbodiimide hydrochloride] (17 mg, 0.089 mmol) and DMAP (8 mg, 0.065 mmol). The solution was stirred for 23 h and then was diluted with 15 mL ethyl acetate and washed with HCl (1 M, 3×15 mL). The ethyl acetate solution was then dried (Na2SO4), filtered and evaporated. Flash chromatography on silica gel (ethyl acetate) gave a mixture of the starting acid and the product amide. Purification by preparative thin layer chromatography (4% methanol/dichloromethane) gave the title amide (6 mg, 0.011 mmol, 20%). 1H NMR (300 MHz, ppm) δ 8.06 (s, 1 H) 7.1–7.0 (m, 2 H) 6.8–6.7 (m, 2 H) 5.43 (br s, 1 H) 4.97 (d, J=4.4 Hz, 1 H) 4.82 (d, J=4.4 Hz, 1 H) 3.4–3.3 (m, 3 H) 3.3–3.2 (m, 2 H) 2.9–2.8 (m, 2 H) 2.6–2.5 (m, 1 H) 2.3–2.1 (m, 4 H) 1.8–0.8 (m, 24 H).

Provenance & Evidence