1,1-Dimethylethyl hexahydropyrrolo[3,4-b]pyrrole-5(1H)-carboxylate → HCID 60205371, compound

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Reaction Steps

N-(5-Bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide (100 mg, 0.3 mmol, Example 1, Step I) and tert-butyl hexahydropyrrolo[3,4-b]pyrrole-5(1H)-carboxylate (190 mg, 0.9 mmol) in n-BuOH (4 mL) were heated to 160° C. for 18 hours in a sealed tube. After concentration, the residue was purified by C-18 reverse phase flash chromatography (Biotage SP4 unit, C-18 25M column, 10-90% CH3CN/water gradient; 30 CV) to yield tert-butyl 1-(5-bromo-3-(nicotinamido)-1H-pyrrolo[2,3-b]pyridin-4-yl)hexahydropyrrolo[2,3-c]pyrrole-5(1H)-carboxylate as a solid.

Provenance & Evidence