2-Bromoethyl methyl ether → (4S)-4-{4-Cyano-2-[(2-methoxyethyl)sulfonyl]phenyl}-3,6-dimethyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carbonitrile

Participants

Reaction Conditions

Reaction Steps

The reaction was carried out under argon. Sodium 5-cyano-2-{(4S)-5-cyano-3,6-dimethyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidin-4-yl}benzenesulfinate (100 mg, 73 μmol; purity 32%) was suspended in DMF (0.5 ml). 2-Bromoethyl methyl ether (148 mg, 1.06 mmol) was then added, and the mixture was heated in a closed tube at 115° C. for 15 h. The mixture was then filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by preparative HPLC (column: Gromsil C-18 10 μm; mobile phase: acetonitrile/water+0.1% TFA 10:90→90:10). The title compound was obtained as a solid (27.3 mg, 73% of theory).

Provenance & Evidence