m-Chloroperbenzoic acid → [5-[3-Fluoro-5-(trifluoromethoxy)phenyl]-1-(3-pyridyl)pyrazol-3-yl]-(1-oxo-1,3-thiazolidin-3-yl)methanone

Participants

Reaction Steps

102 mg (0.23 mmol) of the compound of Example 59 is dissolved in 5 ml of dichloromethane, mixed with 57 mg (0.23 mmol, 70% purity) of meta-chloroperbenzoic acid, and stirred for 16 hours at room temperature. The reaction mixture is concentrated by evaporation in a rotary evaporator, mixed with some acetonitrile, filtered over a Millipore spray filter, and then separated by means of preparative HPLC (mobile solvent: acetonitrile/water gradient). 87 mg (82% of theory) of the title compound is obtained.

Provenance & Evidence