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

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Reaction Steps

But using 0.2 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 and 0.65 g of potassium hydroxide in 7 ml of methanol. After flash chromatography on a silica column [eluent: dichloromethane/methanol (80/20 by volume)], 0.05 g of 4-chloro-2-{5,6-dimethoxy-1-[2-(4-methylpiperazin-1-yl)ethyl]-1H-indol-3-yl}-1H-pyrrolo[2,3-b]pyridine is thus obtained in the form of a solid, the characteristics of which are as follows:

Provenance & Evidence