Diisopropylethylamine → HCID 86698495, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (S)-3-bromo-N-(1-(8-chloro-1-oxo-2-phenyl-1,2-dihydroisoquinolin-3-yl)ethyl)pyrazine-2-carboxamide (12) (133 mg, 0.30 mmol) in anhydrous 1,4-dioxane (6 mL) in a sealed tube, methylamine hydrochloride (102 mg, 1.51 mmol) and N,N-diisopropylethylamine (0.25 mL, 1.51 mmol) were added sequentially. The resulting mixture was stirred at 140° C. in a sealed tube for 14 h. The mixture was allowed to cool to RT and then partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over Na2SO4 and filtered. The filtrate was concentrated in vacuo and the residue was purified by ISCO column chromatography (silica gel cartridge, 0-8% MeOH-DCM) to afford the product (S)-N-(1-(8-chloro-1-oxo-2-phenyl-1,2-dihydroisoquinolin-3-yl)ethyl)-3-(methylamino)pyrazine-2-carboxamide (compound 56). ESI-MS m/z: 434.0 [M+H]+.

Provenance & Evidence