Triethylamine → 2-[2-(3-Chloro-phenylethynyl)-pyrimidin-4-yl]-1-methyl-4-oxo-1,4,6,7-tetrahydro-pyrrolo[3,2-c]pyridine-5-carboxylic acid tert-butyl ester

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Reaction Conditions

Reaction Steps

1-Chloro-3-ethynyl-benzene (0.018 g, 0.132 mmol), copper iodide (0.0012 g, 0.006 mmol) and PdCl2(PPh3)2 (0.0023 g, 0.003 mmol) were added under argon to a solution of 2-(2-iodo-pyrimidin-4-yl)-4-oxo-1,4,6,7-tetrahydro-pyrrolo[3,2-c]pyridine-5-carboxylic acid tert-butyl ester (0.030 g, 0.066 mmol) and triethylamine (0.170 ml) in dry ACN (0.500 ml). The reaction mixture was stirred at 80° C. for 3 h in argon atmosphere. The solvent was removed under vacuum and the crude residue was purified by flash chromatography, over silica gel, using DCM/MeOH (9.8:0.2) as eluent, to afford 2-[2-(3-chloro-phenylethynyl)-pyrimidin-4-yl]-1-methyl-4-oxo-1,4,6,7-tetra-hydro-pyrrolo[3,2-c]pyridine-5-carboxylic acid tert-butyl ester (0.018 g, 0.04 mmol, 60%).

Provenance & Evidence