Triethylamine → N-{4-[4-(4,6-dimethyl-pyridin-2-yl)-[1,4]diazepan-1-yl]-phenyl}-2-oxo-2-(2-phenyl-5,6,7,8-tetrahydro-indolizin-3-yl)-acetamide

Participants

Reaction Steps

To a solution of 4-[4-(4,6-dimethyl-pyridin-2-yl)-[1,4]diazepan-1-yl]-phenyl amine (prepared as described in Reference Example 90, 800 mg, 2.70 mmol) in DCM (30 mL) was added oxo-(2-phenyl-5,6,7,8-tetrahydro-indolizin-3-yl)-acetyl chloride (prepared as described in Reference Example 21, 930 mg, 3.24 mmol) and triethylamine (0.75 mL, 5.4 mmol). The mixture was stirred for 2 h at room temperature then concentrated in vacuo to give a residue which was purified by flash chromatography on silica gel (60-120 mesh) eluting with 30% ethyl acetate/n-hexane to afford N-{4-[4-(4,6-dimethyl-pyridin-2-yl)-[1,4]diazepan-1-yl]-phenyl}-2-oxo-2-(2-phenyl-5,6,7,8-tetrahydro-indolizin-3-yl)-acetamide (500 mg, 35%) as a yellow solid.

Provenance & Evidence