Pyridine → HCID 59244831, compound

Participants

Reaction Steps

To dichloroethane solution (2 ml) of bis-(4-methoxy-benzyl)-[5-(2-morpholin-4-yl-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)-pyrimidin-2-yl]-amine (100 mg, 0.185 mmol), pyridine (45 μl, 0.556 mmol) and N,N-dimethylaminopyridine (2.3 mg, 0.0185 mmol) were added, and further acetic anhydride (52 μl, 0.556 mmol) was added, followed by refluxing for 3 hours. This was cooled to room temperature, followed by addition of saturated aqueous ammonium chloride solution, and passed through Whatman tube. The resulting organic phase was concentrated under reduced pressure, to obtain 1-(4-{2-[bis-(4-methoxy-benzyl)-amino]-pyrimidin-5-yl}-2-morpholin-4-yl-5,6-dihydro-pyrrolo[2,3-d]pyrimidin-7-yl)-ethanone as a crude product. To this, TFA (2 ml) and concentrated sulfuric acid (2 drops) were added, followed by stirring at 40° C. for 4 hours. After concentration of TFA under reduced pressure, water was added, followed by neutralization with 1M aqueous sodium hydroxide solution. After filtering the solid, dichloromethane (5 ml) was added, followed by stirring at room temperature for 30 minutes, and the solid was filtered off, to obtain the desired compound as a colorless solid (29.3 mg, yield 46%).

Provenance & Evidence