HCID 23387587, compound → HCID 23387491, compound

Participants

Reaction Steps

To a solution of t-butyl -2,3-bis-(N-CBz-L-valyloxy)-propionate (7.2 g, 11.4 mmole) in dichloromethane (25 ml) was added tifluoroacetic acid (25 ml) and the solution was stirred for five hours at room temperature. The solution was evaporated under reduced pressure and coevaporated two times with toluene. The product was isolated by silica gel column chromatography. Yield: 5.9 g=90%

Provenance & Evidence