Water → HCID 59807888, compound

Participants

Reaction Steps

A mixture of 4-({2,5-dimethyl-1-[2-(trifluoromethyl)phenyl]-1H-pyrrole-3-carbonyl}-amino)-benzoic acid ethyl ester (0.46 g, 1.1 mmol), lithium hydroxide monohydrate (0.15 g, 3.5 mmol, 3.3 eq), 2 mL of water, 2 mL of THF, and 3 mL of MeOH was stirred 17 h and then was concentrated under reduced pressure. The resulting suspension was treated with 200 μL of TFA and was washed into a separatory funnel with DCM and water. The water was separated and extracted with DCM. The combined extracts were dried (Na2SO4) and concentrated in vacuo. The crude acid was purified by reverse-phase HPLC to afford the title compound (65 mg, 15%) as a colorless solid; 1H NMR (DMSO-d6): δ 12.7-12.8 (br s, 1H), 9.84 (s, 1H), 8.12 (d, J=8 Hz, 1H), 8.03 (t, J=8 Hz, 1H), 8.00 (s, 4H), 7.93 (t, J=8 Hz, 1H), 7.61 (d, J=2H), 6.77 (s, 1H), 2.26 (s, 3H), 2.00 (s, 3H); MS (ESI) m/z 403 [M+H]+.

Provenance & Evidence