Hydrochloric Acid → 2-(4-Chloro-2-oxo-1,2-dihydro-pyridin-3-yl)-4-methyl-6-(1-methyl-piperidin-4-yl)-1H-1,3,6-triaza-s-indacene-5,7-dione Hydrochloride

Participants

Reaction Steps

To a solution of 2-(4-Iodo-2-methoxy-pyridin-3-yl)-4-methyl-6-(1-methyl-piperidin-4-yl)-1H-1,3,6-triaza-s-indacene-5,7-dione (1.48 g, 2.78 mmol) in 1,4-dioxane (30 mL) was added conc. HCl (3 mL) and the resulting solution was stirred at room temperature for overnight. The solid precipitated was isolated by filtration, washed with THF (10 mL) and dried in vacuo to afford 2-(4-Chloro-2-oxo-1,2-dihydro-pyridin-3-yl)-4-methyl-6-(1-methyl-piperidin-4-yl)-1H-1,3,6-triaza-s-indacene-5,7-dione Hydrochloride and 2-(4-Iodo-2-oxo-1,2-dihydro-pyridin-3-yl)-4-methyl-6-(1-methyl-piperidin-4-yl)-1H-1,3,6-triaza-s-indacene-5,7-dione Hydrochloride (1.5 g, quant.) as a yellow solid.

Provenance & Evidence