Bromoacetonitrile → HCID 89668659, compound

Participants

Reaction Steps

N,N-Diisopropylethylamine (84 μL, 0.480 mmol) and subsequently bromoacetonitrile (152 μL, 2.183 mmol) were added to a solution of Boc-Orn(Z)—OH (Compound tk65) (160 mg, 0.437 mmol) in acetonitrile (0.5 mL) at room temperature under a nitrogen atmosphere. The reaction mixture was stirred at the same temperature for 1 hours and then concentrated under reduced pressure, and the resulting crude product was purified by normal-phase silica gel column chromatography (hexane/ethyl acetate) to afford (S)-cyanomethyl 5-(((benzyloxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)pentanoate (Compound tk66) (186.7 mg, quant.).

Provenance & Evidence