4-Chlorobenzylamine → [3-[6-(4-chloro-benzylamino)-pyridin-2-yl]-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-yl]-(2-morpholin-4-yl-ethyl)-amine

Participants

Reaction Conditions

Reaction Steps

A sealed tube was charged with [3-(6-bromo-pyridin-2-yl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-yl]-(2-morpholin-4-yl-ethyl)-amine (from Example 32 supra) (200 mg, 0.37 mmol), 4-chlorobenzylamine (74 mg, 0.52 mmol), Pd2(dba)3 (21 mg, 10% mmol), DavePhos (29 mg, 20% mmol), t-BuONa (50 mg, 0.52 mmol) and dioxane (10 mL). The mixture was stirred at 130° C. under an atmosphere of N2 for 6 hours. After cooling to room temperature, the mixture was filtered and concentrated under reduced pressure. The residue was purified by column chromatography (silica gel, dichloromethane:MeOH, 100:1) to give [3-[6-(4-chloro-benzylamino)-pyridin-2-yl]-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-yl]-(2-morpholin-4-yl-ethyl)-amine. (Yield 100 mg, 50%).

Provenance & Evidence