tert-Butyl (2S)-5-{[(benzyloxy)carbonyl]amino}-2-{[(tert-butoxy)carbonyl]amino}pentanoate → (S)-tert-Butyl 5-amino-2-((tert-butoxycarbonyl)amino)pentanoate

Participants

Reaction Steps

Mix N-t-butyloxycarbonyl-N5 -benzyloxycarbonyl-ornithine, t-butyl ester (2.0 g, 5.0 mmol) and 10% palladium/carbon (0.5 g) in 95% ethanol (40 mL). Hydrogenate at room temperature at atmospheric pressure. Filter and evaporate the filtrate in vacuo to give N-t-butyloxycarbonyl-ornithine, t-butyl ester.

Provenance & Evidence