Sodium Carbonate → 4-Dimethylamino-1-[4-(7-chloro-4-quinolylamino)-benzenesulphonyl]piperidine

Beteiligte Stoffe

Reaktionsschritte

11.3 Grams of 4-(7-chloro-4-quinolylamino)-benzenesulphonyl chloride hydrochloride [prepared as in Example 1(b)] were added in portions to a stirred mixture of 5.83 grams of 4-dimethylamino-piperidine dihydrochloride and 32 grams of sodium carbonate in 100 milliliters of water and 75 milliliters of chloroform. After stirring overnight at room temperature the mixture was filtered, the resultant solid washed with water, dried and recrystallised from ethanol/water to give 6.28 grams of the title compound. Melting point 230°--231°C.

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