HCID 15895124, compound → HCID 178435737, compound

Participants

Reaction Steps

The compound (1.24 g) obtained in Example 10 was dissolved in trifluoroacetic acid (10 ml), and the solution was stirred at room temperature for 2 hours and then the solvent was distilled off under reduced pressure. The residue was dissolved in ethyl acetate and the resulting solution was neutralized with a 1N aqueous sodium hydroxide solution, after which the organic layer was separated, washed with water, dried and then concentrated under reduced pressure. The residue was purified by a silica gel column chromatography to obtain the desired compound (562 mg).

Provenance & Evidence