Potassium Carbonate → 4-chloro-2-{5,6-dimethoxy-1-[2-(4-methylpiperazin-1-yl)ethyl]-1H-indol-3-yl}-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine

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Reaction Steps

But using 0.98 g of 4-chloro-2-[1-(2-iodoethyl)-5,6-dimethoxy-1H-indol-3-yl]-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine, 0.21 g of potassium carbonate and 0.31 g of 1-methylpiperazine in 100 ml of acetonitrile. After flash chromatography on a silica column [eluent: dichloromethane/methanol (90/10 by volume)], 0.52 g of 4-chloro-2-{5,6-dimethoxy-1-[2-(4-methylpiperazin-1-yl)ethyl]-1H-indol-3-yl}-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine is thus obtained in the form of an oil, the characteristics of which are as follows:

Provenance & Evidence