Cesium carbonate → (S)-3-(4-((1-(5-Methyl-4-oxo-3-phenyl-3,4-dihydropyrrolo[2,1-f][1,2,4]triazin-2-yl)ethyl)amino)-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-5-yl)-5-(methylsulfonamido)phenyl methanesulfonate

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Reaction Steps

(S)-2-(1-((5-Bromo-7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)ethyl)-5-methyl-3-phenylpyrrolo[2,1-f][1,2,4]triazin-4(3H)-one (170 mg, 0.29 mmol) was treated with 3-(methylsulfonamido)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl methanesulfonate (300 mg, 0.67 mmol, prepared from the title compound of Preparation 105 and methanesulfonyl chloride according to Preparation 37), 2M cesium carbonate (450 μl, 0.90 mmols) and bis(diphenylphosphino)ferrocene-palladium(II)dichloride dichloromethane (50 mg, 0.06 mmol) according to the method described in Preparation 62. The residue was purified using SP1® Purification System (0% to 80%, hexane-ethyl acetate) to give 169 mg (66% yield) of the title compound. Purity 87%.

Provenance & Evidence