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

Participants

Reaction Steps

100 mg (0.26 mmol) of the compound of Example 5 is dissolved in 5 ml of dichloromethane, mixed with 63 mg (0.26 mmol, 70% purity) of meta-chloroperbenzoic acid, and stirred for 4 hours at room temperature. The reaction mixture is separated by means of preparative HPLC (mobile solvent: acetonitrile/water gradient). 97 mg (93% of theory) of the title compound is obtained.

Provenance & Evidence