1-Methylpiperazine → HCID 67141759, compound

Participants

Reaction Steps

A solution of 7-(3,4-dihydro-1H-isoquinolin-2-yl)-2,3-dimethyl-1H-pyrrolo[2,3-c]pyridin-5-carboxylic acid (450 mg, 1.4 mmol) prepared in Step 1, 1-hydroxybenzotriazole hydrate (284 mg, 2.1 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (401 mg, 2.1 mmol), diisopropylethylamine (730 μl, 4.2 mmol), and 1-methylpiperazine (234 μl, 2.1 mmol) in dichloromethane (10 ml) was stirred overnight at room temperature and then concentrated under reduced pressure. The resulting residue was purified with silica gel column chromatography (dichloromethane/methanol=10/1, v/v) to give 300 mg of the titled compound as a white solid (Yield: 53%).

Provenance & Evidence