Trifluoroacetic acid → HCID 86753698, compound

Participants

Reaction Steps

8.0 ml of trifluoroacetic acid and 160 μl of trifluoromethanesulfonic acid were added, whilst ice-cooling, to a suspension of 1120 mg of (2S,4S)-4-(4-methoxybenzylthio)-2-[4-(4-nitrobenzyloxycarbonylmethyl)-1-piperazinecarbonyl]-1-(4-nitrobenzyloxycarbonyl)pyrrolidine in 1.75 ml of anisole, and the resulting mixture was stirred at room temperature for 1.5 hours. At the end of this time, the solvent was removed by distillation under reduced pressure, and the resulting residue was repeatedly washed with diethyl ether by decantation and dried in vacuo, to afford 1.58 g of the title compound, as a powder.

Provenance & Evidence