Trifluoroacetic acid → HCID 44155672, compound

Participants

Reaction Steps

To solution of (R)-[3-oxo-3-[3-(pyrrolidine-1-carbonyl)-4H,6H-2,5,10b-triaza-benzo-[e]azulen-5-yl]-1-(2,4,5-trifluoro-benzyl)-propyl]-carbamic acid tert-butyl ester (45 mg, 0.08 mmol) in DCM (5 mL) was added trifluoroacetic acid (0.24 mL, 3 mL/mmol). The reaction mixture was stirred at r.t. for 1 h. After the completion of the reaction, as confirmed by TLC, excess of trifluoroacetic acid and DCM were evaporated in vacuo to afford a gummy solid which was crystallized from hexane to afford trifluoroacetic acid salt of (R)-3-amino-1-[3-(pyrrolidine-1-carbonyl)-4H,6H-2,5,10b-triaza-benzo[e]azulen-5-yl]-4-(2,4,5-trifluoro-phenyl)-butan-1-one (40 mg, 86%)

Provenance & Evidence