Triethylamine → (S)-tert-Butyl (3-(benzyloxy)-1-(5-bromo-4-oxo-3-phenyl-3,4-dihydropyrrolo[2,1-f][1,2,4]triazin-2-yl)propyl)carbamate

Participants

Reaction Steps

(S)-tert-Butyl (4-(benzyloxy)-1-((3-bromo-2-(phenylcarbamoyl)-1H-pyrrol-1-yl)amino)-1-oxobutan-2-yl)carbamate (0.7 g, 1.22 mmol) was treated with triphenylphosphine (0.45 g, 1.72 mmol), bromine (88 μl, 1.72 mmol), triethylamine (683 μl, 4.90 mmol) and sodium methanethiolate (0.17 g, 2.45 mmol) according to the method of Preparation 23. The residue was purified using Isolera® Purification System (0% to 20%, hexane-ethyl acetate) to give 0.61 g (90% yield) of the title compound. Purity 100%.

Provenance & Evidence