Trifluoroacetic acid → HCID 54254840, compound

Participants

Reaction Steps

5-{(1R)-1-[N-((2R)-2-tert-Butoxycarbonylamino-3-(2-naphthyl)propionyl)-N-methylamino]-2-(2-naphthyl)ethyl}-[1,2,4]oxadiazole-3-carboxylic acid (2-propyl)ester (2.1 g, 3.3 mmol) was suspended in a saturated mixture of trifluoroacetic acid and dichloromethane (1:1, 60 ml). After 10 min at 20° C., the reaction mixture was concentrated in vacuo to give 2.2 g of 5-{(1R)-1-[N-((2R)-2-amino-3-(2-naphthyl)propionyl)-N-methylamino]-2-(2-naphthyl)ethyl}-[1,2,4]oxadiazole-3-carboxylic acid (2-propyl)ester, trifluoroacetate, that was used for the next step without further purification.

Provenance & Evidence