反应详情

62.0 mg (0.18 mmol) of the compound from Example 93 were introduced into 10 ml of dichloromethane at 0° C., 43.5 mg (0.18 mmol) of 70% pure meta-chloroperbenzoic acid were added, and the mixture was stirred at RT overnight. 2 ml of methanol were added, and the residue after concentration was purified by preparative HPLC (RP18 column; mobile phase: acetonitrile/water gradient with addition of 0.1% formic acid) to result in 48 mg (74% of theory) of the title compound as mixture of diastereomers.

1. concentrationthe residue after concentration
2. customwas purified by preparative HPLC (RP18 column; mobile phase: acetonitrile/water gradient with addition of 0.1% formic acid)