Hydrochloric Acid → HCID 70055004, compound

Participants

Reaction Steps

To a mixture of N-CBZ-L-phenylalanyl-L-alanine 2,4,6-trimethylbenzoyloxymethyl ketone (0.38 mmol, 200 mg) in 100 mL of ethanol containing 150 μL (0.75 mmol) of 5 N HCl was added 10% palladium on charcoal (20 mg). This mixture was vigorously stirred under an atmosphere of hydrogen gas for 3 hours, the catalyst was removed by filtration through a bed of Celite, and the filtrate was rotary evaporated under reduced pressure. The residue was then precipitated from ethanol-ethyl ether, washed with ethyl ether, and dried at high vacuum to quantitatively afford the product as a powder, m.p. 123°-126° C.

Provenance & Evidence