反应详情

To a solution of 162b (45 mg, 0.20 mmol) in dichloromethane (1.5 mL) was added trifluoroacetic acid (1 mL) at room temperature. The solution was stirred for 5 h. It was then concentrated under reduced pressure to afford 162c which was used in the next step without further purification. MS-ESI: [M+H]+ 124.3

1. concentrationIt was then concentrated under reduced pressure