Water → 7-(Cyclopropylmethyl)-9-(2,4-dimethoxybenzyl)-2-[1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl]-7,9-dihydro-8H-purin-8-one

Participants

Reaction Steps

500 mg (0.980 mmol) of the compound from example 82A were dissolved in 10 ml of DMF, 414 mg (1.270 mmol) of cesium carbonate and 150 mg (1.08 mmol) of 2-bromomethylcyclopropane were added and the mixture was stirred at RT for 18 h. Water was added and the mixture was extracted with ethyl acetate. The combined organic phases were dried over sodium sulfate and concentrated on a rotary evaporator. The residue was dried under high vacuum. 482 mg (72% of theory, purity 82%) of the title compound were obtained.

Provenance & Evidence