Trifluoroacetic acid → HCID 71257611, compound

Participants

Reaction Steps

To a solution (10 ml) of Y244 (332 mg, 0.53 mmol) produced in Example 5 in dichloromethane was added trifluoroacetic acid (3 ml), and the mixture was stirred at room temperature for 20 min. Then, the reaction mixture was concentrated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (eluent; chloroform:methanol (8:1-3:1)) to give the title compound (283 mg, 87%).

Provenance & Evidence