反应详情

200 mg (0.49 mmol) of the compound from Example 279 were introduced into 20 ml of dichloromethane at 0° C., 120 mg (0.49 mmol) of 70% pure meta-chloroperbenzoic acid were added, and the mixture was stirred at RT for 2 h. 2 ml of methanol were added, and the solution was concentrated. The crude product was purified by preparative HPLC (mobile phase: acetonitrile/water gradient) to result in 134 mg (65% of theory) of the title compound as mixture of diastereomers.

1. concentrationthe solution was concentrated
2. customThe crude product was purified by preparative HPLC (mobile phase: acetonitrile/water gradient)