反应详情

100 mg (0.29 mmol) of the compound from Example 227 were introduced into 15 ml of dichloromethane at 0° C., 72 mg (0.29 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 135 mg 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)