Lithium Hydroxide → HCID 11634144, compound

Participants

Reaction Steps

{5-[4-(4-Trifluoromethyl-phenyl)-piperazine-1-sulfonyl]-indan-2-yl}-acetic acid methyl ester (118 mg, 0.245 mmol) was dissolved in THF (10 mL). To this solution was added 1M LiOH (5 mL) and was stirred at room temperature for 3 h. TLC indicated that the reaction was complete. The reaction mixture was then quenched with Dowex 50WX4-50 until neutral and then filtered to afford pure {5-[4-(4-trifluoromethyl-phenyl)-piperazine-1-sulfonyl]-indan-2-yl}-acetic acid (112 mg, 98%) as a white solid. The product can be further purified by silica gel flash column chromatography (dichloromethane/MeOH/AcOH 95:5:0.1). 1H NMR (400 MHz, MeOH-d4) 7.60 (s, 1H), 7.56 (d, 1H), 7.45 (d, 2H), 7.41 (d, 1H), 7.00 (d, 2H), 3.32 (m, 4H), 3.22 (m, 2H), 3.17 (m, 4H), 2.88 (m, 1H), 2.72 (m, 2H), 2.47 (d, 2H); LCMS: 468.8 (M+1)+.

Provenance & Evidence