Trifluoroacetic acid → HCID 22851539, compound

Participants

Reaction Steps

15 ml of trifluoroacetic acid and 0.36 ml of trifluoromethanesulfonic acid were added to a solution of 1.47 g of (2S,4S)-4-(4-methoxybenzylthio)-2-[4-(4-nitrobenzyloxycarbonylmethyl)-1-homopiperazinylcarbonyl]-1-(4-nitrobenzyloxycarbonyl)pyrrolidine (prepared as described in Preparation 12) in 2.2 ml of anisole, and the resulting mixture was stirred at room temperature for 1 hour. At the end of this time, the reaction mixture was treated by a procedure similar to that described in Example 13(1), to give 1.8 g of the title compound as a powder.

Provenance & Evidence