1,3-dimethyl-1H-pyrazol-4-amine → 6-[(1,3-Dimethylpyrazol-4-yl)amino]-4-[(2-methyl-1-oxo-3,4-dihydroisoquinolin-8-yl)amino]pyridine-3-carbonitrile

Temperatur

90 °C

6-chloro-4-(2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinolin-8-ylamino)nicotinonitrile (595 mg, 1.90 mmol), Palladium(II) acetate (34.2 mg, 0.15 mmol), 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene (132 mg, 0.23 mmol), 1,3-dimethyl-1H-pyrazol-4-amine (423 mg, 3.80 mmol) and Cesium carbonate (744 mg, 2.28 mmol) were suspended in dioxane (40 mL). The reaction was purged for 5 mins with nitrogen and then heated to 90 °C for 2 hour with stirring. The reaction was cooled to RT. The crude product was purified by ion exchange chromatography, using an SCX column. The desired crude product was eluted from the column using 7M NH3/MeOH and fractions were evaporated to dryness to afford crude product .The crude product was purified by preparative basic HPLC. Fractions containing the desired compound were evaporated to dryness to afford 6-(1,3-dimethyl-1H-pyrazol-4-ylamino)-4-(2-methyl-1-oxo-1,2,3,4-tetrahydroisoquinolin-8-ylamino)nicotinonitrile (54.0 mg, 7.33 %) as a beige solid.

ORD-Eintrag

ord-2e4132c3c32149d3a68cd64301eacce5

Quelldatensatz

750 AstraZeneca ELN dataset

Originallink

Quelle ansehen