Trifluoroacetic acid → HCID 42640886, compound

Participants

Reaction Steps

The reaction was carried out under argon. tert-Butyl [(6R)-5-cyano-6-[4-cyano-2-(methylsulfonyl)phenyl]-4-methyl-2-oxo-3-[3-(trifluoromethyl)phenyl]-3,6-dihydropyrimidin-1(2H)-yl]acetate (350 mg, 609 μmol; Example 7) was initially charged in dichloromethane (60 ml), and trifluoroacetic acid (20 ml) was added. The mixture was stirred at RT for 90 min. The volatile components were then removed on a rotary evaporator. The residue was taken up in toluene (50 ml) and again concentrated under reduced pressure. This procedure was repeated once more. 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). The title compound was obtained as a colorless solid (290 mg, 92% of theory).

Provenance & Evidence