Hydrochloric Acid → HCID 11497604, compound

Participants

Reaction Steps

The crude (3-Chloro-4-{4-[2-(2,4-dichloro-phenoxy)-ethylcarbamoyl]-5-phenyl-isoxazol-3-yl}-phenyl)-acetic acid methyl ester 36 (0.85 mmol) is dissolved in THF (5 mL). A solution of 1 M LiOH in H2O (2 mL) is added and the mixture is stirred overnight at room temperature. The mixture is acidified with 1 M HCl (3 mL), DCM (50 mL) is added and the organic layer washed with H2O (3×30 mL). The organic layer is dried (MgSO4), filtered, concentrated and purified on reverse phase HPLC (H2O/MeCN gradient) to afford the title compound G1 as a white solid: 1H-NMR (400 MHz, CDCl3) δ=7.93 (dd, J=1.8 Hz, J=7.8 Hz, 2H), 7.52-7.23 (m, 7H), 7.17 (dd, J=8.8 Hz, J=2.5 Hz, 1H), 6.71 (d, J=8.8 Hz, 1H), 6.15 (t, J=5.3 Hz, NH), 3.92 (t, J=4.8 Hz, 2H), 3.72 (q, J=5.3 Hz, 2H), 3.50 (s, 2H). MS calculated for C26H20Cl3N2O5 (M+H+) 545.0, found 545.3.

Provenance & Evidence