Water → HCID 57563615, compound

Participants

Reaction Steps

To a suspension of the compound prepared in Example 15 (119 mg) in dioxane (2 ml) were added pyridine (0.1 ml) and trifluoromethanesulfonic acid anhydride (54 μl) at 0° C. under an atmosphere of argon. The mixture was stirred at room temperature for 10 minutes. To the reaction mixture was added water and the mixture was extracted with ethyl acetate. The organic layer was washed with water and a saturated aqueous solution of sodium chloride subsequently, dried over anhydrous magnesium sulfate and concentrated. The residue was washed with n-hexane:ethyl acetate to give the title compound (94 mg) having the following physical data.

Provenance & Evidence