HCID 57115635, compound → HCID 13456353, compound

Participants

Reaction Steps

1.95 g of benzyl (4S)-1-methyl-3-{(2S)-2-[N-((1S)-1-ethoxycarbonyl-n-nonyl)amino]propionyl}-2-oxo-imidazolidine-4-carboxylate and 50 mg of palladium black are treated in the same manner as described in Example 1-(2), whereby 1.49 g of (4S)-1-methyl-3-{(2S)-2-[N-((1S)-1-ethoxycarbonyl-n-nonyl)amino]propionyl}-2-oxo-imidazolidine-4-carboxylic acid are obtained as colorless crystals. Yield: 93.1%

Provenance & Evidence