Pyridine → 2-(4-Chloro-benzenesulfonylamino)-5,5,5-trifluoro-3-(2,2,2-trifluoroethyl)-pentanoic acid methyl ester

Participants

Reaction Conditions

Reaction Steps

4-Chlorophenyl sulphonyl chloride (85 mg, 0.40 mmol) was added to a solution of 2-amino-5,5,5-trifluoro-3-(2,2,2-trifluoroethyl)-pentanoic acid methyl ester (108 mg, 0.40 mmol) and pyridine (0.15 mL, 1.00 mmol) in CH2Cl2 (2 mL) and the reaction was subsequently stirred for 18 hours at 25° C. The solvent was removed in vacuo and the residue was dissolved in EtOAc (20 mL). This solution was washed with 1M HCl (2×10 mL) and brine (10 mL), dried over Na2SO4 and evaporated to afford a crude oil which was purified by flash chromatography, eluting with 20:80 EtOAc:hexanes, to provide the title compound (125 mg) as an oil in 70% yield. Mass Spectrum (−ESI): 446.0 [M−H]−.

Provenance & Evidence