Methyl 3-bromo-2-oxobutanoate → Methyl 2-(7-(dicyclopropylcarbamoyl)-6-ethyl-1-methyl-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridin-4-ylamino)-5-methylthiazole-4-carboxylate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Methyl 3-bromo-2-oxobutanoate (320 mg, 1.642 mmol) was added to a suspension of N,N-dicyclopropyl-6-ethyl-1-methyl-4-thioureido-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridine-7-carboxamide (example 2B, 435 mg, 1.094 mmol) in EtOH (10 ml) and the reaction mixture was heated at 65° C. for 2 h. The solvent was removed in vacuo and the residue purified by silica gel chromatography (2-10% MeOH/dichloromethane) to give methyl 2-(7-(dicyclopropylcarbamoyl)-6-ethyl-1-methyl-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridin-4-ylamino)-5-methylthiazole-4-carboxylate (380 mg, 70% yield) as yellow solid.

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