Methyl morpholine oxide → HCID 73672704, compound

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Reaction Steps

To a solution of 2,3-dichloro-N-(2-(4-hydroxypiperidin-1-yl)-2-(2-methylpyrimidin-5-yl)ethyl)benzamide (130 mg, 0.32 mmol) in DCM (5 mL) was added 4 A molecular sieves (1.3 g), NMO (205 mg, 1.75 mmol) and TPAP (2.2 mg). The mixture was stirred at room temperature overnight. The resulting mixture was filtered. The filtrate was washed with water, dried over Na2SO4 and concentrated. The residue was purified by preparative TLC (EtOAc:MeOH=100:3) to give 2,3-dichloro-N-(2-(2-methylpyrimidin-5-yl)-2-(4-oxopiperidin-1-yl)ethyl)benzamide (31 mg, yield: 24%) as a white solid. 1HNMR (CDCl3 400 MHz): δ8.59 (s, 2H), 7.56 (dd, J=8.0 Hz, 1.6 Hz, 1H), 7.49 (dd, J=7.6 Hz, 1.6 Hz, 1H), 7.34-7.27 (m, 1H), 6.63 (br, 1H), 4.08-3.82 (m, 3H), 2.95-2.82 (m, 2H), 2.79-2.65 (m, 5H), 2.55-2.40 (m, 4H). LCMS (MH+): m/z=425.0, tR (minutes, Method F)=1.75

Provenance & Evidence