Diisopropylethylamine → N-(trans-2-((2-(5-chloro-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-fluoropyrimidin-4-ylamino)methyl)cyclohexyl)-2-methoxyethanamide

Participants

Reaction Steps

To a cooled mixture of N-((trans-2-aminocyclohexyl)methyl)-2-(5-chloro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-fluoropyrimidin-4-amine (0.060 g, 0.093 mmol) and iPr2NEt (0.057 mL, 0.330 mmol) in CH2Cl2 (2 mL) at 0° C., was added 2-methoxyacetyl chloride (0.010 g, 0.098 mmol). After 5 min, the solution was allowed to warm to room temperature. After 3 hours, the mixture was concentrated in vacuo, taken up in THF (1 mL) and treated with LiOH (0.326 mL, 1.0 M solution) at 120° C. for 10 min. The resulting mixture was cooled to room temperature and partitioned and the aqueous layer extracted with EtOAc and the combined organics were concentrated in vacuo. Preparative HPLC provided the desired product, 556, as a racemic mixture of TFA salts (8.6 mg, 17% yield).

Provenance & Evidence