Trifluoroacetic acid → Cbz-Dap-Ala-OBn

Participants

Reaction Steps

Compound (247) (0.51 g, 1.02 mmol) from above was dissolved in dichloromethane (1 mL) and treated with trifluoroacetic acid (1 mL). The resulting mixture was stirred at room temperature for 3 h. The solvent was removed in vacuo and the crude residue (248) (0.49 g) was used in the next step without further purification.

Provenance & Evidence