m-Chloroperbenzoic acid → HCID 57780518, compound

Participants

Reaction Steps

A mixture of N-[(1S)-1-(aminocarbonyl)-2,2-dimethylpropyl]-3-[2-(methylsulfinyl)ethyl]-2-oxo-2,3-dihydro-1H-benzimidazole-1-carboxamide (Example 33, 150 mg), m-chloroperbenzoic acid (70%, 170 mg) and NaHCO3 (150 mg) in dichloromethane (5 mL) was stirred overnight and quenched with sat. Na2S2O3 aq. (25 mL) The whole was extracted with ethyl acetate (25 mL×2). The combined organic layers were washed with brine, dried over magnesium sulfate, filtrated and concentrated in vacuo. The residue was purified by preparative TLC to yield the titled compound. (100 mg)

Provenance & Evidence