Hydrogen Peroxide → HCID 58485336, compound

Participants

Reaction Steps

Hydrogen peroxide (35% in water, 0.1 mL) was added to a mixture of 2-[5-(4-{(S)-1-[(S)-6-(2-hydroxy-2-methyl-propyl)-2-oxo-6-phenyl-[1,3]oxazinan-3-yl]-ethyl}-phenyl)-pyridin-2-yl]-2-methyl-propionitrile (0.21 g; for preparation see Example 194) and K2CO3 (0.03 g) in ddimethyl sulfoxide (2 mL) at room temperature. After stirring the mixture for 3 h at room temperature, another portion of hydrogen peroxide (35% in water, 0.1 mL) and K2CO3 (0.03 g) were added. The mixture was further stirred at room temperature for 1 h and at 40° C. overnight. After cooling to room temperature, little aqueous Na2S2O3 solution was added and then the mixture was concentrated. The residue was purified by HPLC on reversed phase (methanol/water/ammonia) to furnish the title compound. Yield: 0.03 g (14% of theory); Mass spectrum (ESI+): m/z=516 [M+H]+.

Provenance & Evidence