Trifluoroacetic acid → HCID 131723559, compound

Participants

Reaction Steps

Under N2 atmosphere, the Boc-DPro-diisobutylamide was dissolved in 25 ml of CH2Cl2 and 1-ml of trifluoracetic acid was added while being stirred. The reaction mixture was stirred for 30 min. Volatiles were removed under vacuum and the residue was dissolved in 30 ml of CH2Cl2 and washed with 10 ml saturated NaHCO3 aqueous solution. The organic layer was removed and the aqueous layer was extracted with CH2Cl2 (3×10 ml). The organic layer was dried over anhydrous sodium sulfate and filtered and the solvent was removed in vacuum. The residue was further purified by column chromatography (SiO2, CHCl3/MeOH, 85:15) to afford 0.73 mmol (73%) of compound (1) which was characterized by TLC on mass spectra, M+=225.1.

Provenance & Evidence