Tetrahydrofuran → HCID 11270377, compound

Participants

Reaction Conditions

Reaction Steps

To a cooled solution (0° C.) of the product of Example 16A (347 mg, 0.83 mmol) in dry THF (2 mL), was added a solution of CF3CO3H in THF (4 M; 0.21 mL, 0.83 mmol). The reaction was stirred 30 minutes at 0° C., then for 30 minutes at room temperature, and concentrated under vacuum. The residue was purified by flash chromatography (35 g silica gel, 1:5:94 NH4OH-MeOH—CH2Cl2) to afford the title compound (360 mg, 100%).

Provenance & Evidence