Water → Gamma-glutamyl-valyl-glycine

Participants

Reaction Steps

Z-Glu(Val-Gly-OBzl)-OBzl described above (6.20 g, 10.03 mmol) was suspended in ethanol (200 ml), 10% palladium/carbon (1.50 g) was added to the suspension, and a reduction reaction was performed under a hydrogen atmosphere at 55° C. for 5 hours. During the reaction, 100 ml in a total volume of water was gradually added. The catalyst was removed by filtration using a Kiriyama funnel, and the filtrate was concentrated under reduced pressure to a half volume. The reaction solution was further filtered through a membrane filter, and the filtrate was concentrated under reduced pressure. After the residue was dissolved in a small volume of water, ethanol was added to precipitate a crystal, and the crystal was collected by filtration and dried under reduced pressure to obtain γ-Glu-Val-Gly as a white powder (2.85 g, 9.40 mmol).

Provenance & Evidence