4-chloro-2-morpholin-4-yl-7-pyridin-4-yl-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidine → HCID 67385657, compound

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Reaction Steps

To a solution of n-butyl lithium (1.56M hexane solution, 0.23 ml, 0.363 mmol) in tetrahydrofuran (2 ml), at 0° C., isopropyl magnesium chloride (2M tetrahydrofuran solution, 0.09 ml, 0.182 mmol) was added, followed by stirring for 15 minutes. To this, a solution of (6-bromo-pyridin-3-yl)-bis-(4-methoxy-benzyl)-amine (50 mg, 0.121 mmol, 1.0 equivalent) in tetrahydrofuran (1 ml) was added, followed by stirring for 1.5 hours. Zinc chloride (1M diethyl ether solution, 0.55 ml, 0.545 mmol) was added, and the temperature was raised to room temperature, followed by stirring for 1 hour. 4-Chloro-2-morpholin-4-yl-7-pyridin-4-yl-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidine (38.4 mg, 0.121 mmol) was added, followed by refluxing for 2 hours. Water was added, followed by extraction with ethyl acetate, and the organic layer was washed with brine. After drying over sodium sulfate, concentration was carried out under reduced pressure. Purification by preparative TLC (dichloromethane/methanol=40/1) afforded bis-(4-methoxy-benzyl)-[6-(2-morpholin-4-yl-7-pyridin-4-yl-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-4-yl)-pyridin-3-yl]-amine (5.3 mg, yield 7%).

Provenance & Evidence