Acetic Acid → 1-{1-[(5-Chlorothiophen-2-yl)methyl]piperidin-4-yl}-7-{[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrrolo[2,3-h][1,6]naphthyridin-4(7H)-one

Participants

Reaction Steps

1-(Piperidin-4-yl)-7-{[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrrolo[2,3-h][1,6]naphthyridin-4(7H)-one (20 mg, 0.050 mmol) in methanol was stirred with 5-chlorothiophen-2-carbaldehyde (6.3 μL, 0.06 mmol), 2-picoline borane (6.4 mg, 0.06 mmol) and acetic acid (100 μL) for one day. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (chloroform/methanol=10/1 (v/v)) to give the title compound as a colorless oil (20 mg, yield 75%).

Provenance & Evidence