Trifluoroacetic acid → HCID 11315834, compound

Participants

Reaction Steps

The compound prepared in Example 3 (530 mg, 1.136 mmol) was dissolved in dichloromethane (6 ml), and trifluoroacetic acid (3 ml) was added at 0□. The mixture was stirred for two hours while it was slowly warmed to room temperature, and concentrated under reduced pressure to give the title compound (Ibb) (465 mg) with a stoichiometric yield.

Provenance & Evidence