4-Toluenesulfonyl chloride → HCID 66612882, compound

Participants

Reaction Steps

The reaction was carried out under argon. (4S)-4-[4-Cyano-2-(methylsulfonyl)phenyl]-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (278 mg, 604 μmol) was initially charged in dry THF (6 ml), and sodium hydride (60% in mineral oil; 34 mg, 845 μmol; 1.4 eq.) was added at 0° C. The mixture was warmed to RT and stirred for 20 min. A solution of p-toluenesulfonyl chloride (161 mg, 845 μmol; 1.4 eq.) in THF (˜2 ml) was then slowly added dropwise. After a reaction time of 16 h, the reaction mixture was concentrated and the crude product was purified by preparative HPLC (column: Gromsil C-18 10 μm; mobile phase: acetonitrile/water+0.1% TFA 10:90→90:10). This gave the title compound as a colorless solid (358 mg, 96% of theory).

Provenance & Evidence