O-Benzylhydroxylamine → HCID 88209454, compound

Participants

Reaction Steps

A solution of 0.415 g of (E)-N-(1,2,3,5,6,7,8,8a(RS)-octahydro-1,3-dioxoimidazo[1,5-a]pyrazin-2-yl)-2(R)-[1(S)-(carboxy)-4-phenyl-3-butenyl]-4-methylvaleramide in 0.25 ml of dimethylformamide was treated with 0.461 g of O-benzylhydroxylamine and 0.173 g of 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride and stirred at room temperature for 4 hours. Evaporation gave a residue which was dissolved in ethyl acetate and washed with 5% aqueous sodium hydrogen carbonate and saturated aqueous sodium chloride. Drying over anhydrous magnesium sulphate and evaporation gave a residue which was triturated with diethyl ether to give 0.160 g of (E)-N-(1,2,3,5,6,7,8,8a(RS)-octahydro-1,3-dioxoimidazo[1,5-a]pyrazin-2-yl)-2(R)-[1(S)-(benzyloxycarbamoyl)-4-phenyl-3-butenyl]-4-methylvaleramide in the form of a white solid.

Provenance & Evidence