Cesium carbonate → 3-chloro-N-[5-(1H-pyrrolo[2,3-b]pyridin-3-ylmethyl)-pyridin-2-yl]-benzamide

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Reaction Conditions

Reaction Steps

3-(6-Bromo-pyridin-3-ylmethyl)-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine (6a, 10 mg, 0.023 mmol, prepared as described in Example 2, Scheme 4) was combined with 3-chloro-benzamide (544, 15 mg, 0.096 mmol) in dioxane (0.4 mL). Tris(dibenzylideneacetone)-dipalladium(0) (3 mg), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos, 3 mg), and sodium tert-butoxide (15 mg) were added. Cesium carbonate (20 mg) was added and the mixture was heated at 100° C. overnight. Acetic acid (0.1 mL) was added and the solvents removed under reduced pressure. The remaining residue was dissolved in DMSO (0.2 mL) and purified by reverse phase HPLC on a YMC-Pack ODS-A C-18 column (50 mm×10 mm ID), eluting with water with 0.1% trifluoroacetic acid and 5-40% acetonitrile with 0.1% trifluoroacetic acid over 13 minutes at a flow rate of 6 mL/minute to provide the desired compound P-0111. MS (ESI) [M+H+]+=363.1.

Provenance & Evidence