反应详情

温度

230 °C

To a microwave vial was added a stir bar, 6-chloro-pyridine-2-carboxylic acid {3-[(pyridine-2-carbonyl)-amino]-adamantan-1-yl}-amide (Intermediate 4, 20 mg, 0.05 mmol), copper (II) oxide (20 mg, 0.2 mmole), DMA (1 mL), 3-methoxy-propylamine (0.05 mL) and cesium carbonate (120 mg, 0.3 mmol). The mixture was heated at 230° C. under microwave irradiation for 30 min. Solvent was removed in Genevac. The residue was dissolved in DCM (2 mL), washed with aq. 1 N NaOH (2 mL), and water (2×2 mL). After removing the solvent, the crude product was purified on a RP-HPLC/MS system (Gradient: acetonitrile in water with a cycle time of 5 min. Flow rate: 100 mL/min. Mobile phase additive: 25 mM of ammonium acetate. Column: Inertsil® C8, 30×50 mm, 5 μm particle size (GL Sciences, Tokyo, Japan)) to afford 3.9 mg of the title compound, 6-(3-methoxy-propylamino)-pyridine-2-carboxylic acid {3-[(pyridine-2-carbonyl)-amino]-adamantan-1-yl}-amide. The product was quality checked (QC) by LC-MS (Gradient: acetonitrile in water, 30-90%, in 1.7 minutes with a cycle time of 2 min. Flow rate: 5.0 mL/min. Mobile phase additive: 30 mM of ammonium formate. Column: Inertsil® C8, 50×4.6 mm, 3 μm particle size (GL Sciences, Tokyo, Japan)): Retention time: 1.29 min; purity (UV254): 94%; ESI-MS m/z: 464.6 (M+H)+.

1. additionTo a microwave vial was added a stir bar
2. customSolvent was removed in Genevac
3. dissolutionThe residue was dissolved in DCM (2 mL)
4. washwashed with aq. 1 N NaOH (2 mL), and water (2×2 mL)
5. customAfter removing the solvent
6. customthe crude product was purified on a RP-HPLC/MS system (Gradient
7. customwith a cycle time of 5 min