Aniline → (S)-tert-Butyl (4-(benzyloxy)-1-((3-bromo-2-(phenylcarbamoyl)-1H-pyrrol-1-yl)amino)-1-oxobutan-2-yl)carbamate

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Reaction Steps

(S)-Methyl 1-(4-(benzyloxy)-2-((tert-butoxycarbonyl)amino)butanamido)-3-bromo-1H-pyrrole-2-carboxylate (1 g, 1.96 mmol) was treated with aniline (893 μl, 9.8 mmol) and trimethyl aluminium (2 M in toluene, 4.9 mL, 9.8 mmol) according to the method of Preparation 10a. The residue was purified using SP1® Purification System (0% to 30%, hexane-ethyl acetate) a to obtain 0.71 g (63% yield) of the title compound. Purity 100%.

Provenance & Evidence