Ethylene Glycol → N-[6-(2-hydroxyethoxy)-5-(o-methoxybenzyl)-4-pyrimidinyl]-p-methoxybenzenesulfonamide

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

300 mg of N-[6-chloro-5-(p-methoxybenzyl)-4-pyrimidinyl]-p-methoxybenzenesulfonamide were added to a sodium glycolate solution from 1 ml of dry ethylene glycol and 46 mg of sodium. The reaction mixture was heated at 125° C. for 4 hours under an argon atmosphere. Thereafter, the ethylene glycol was distilled under reduced pressure. The residue was partitioned between ethyl acetate and 1N hydrochloric acid. The organic phase was washed neutral, dried and evaporated. The residue was chromatographed on silica gel with methylene chloride/ethyl acetate (1:1 v/v). There were obtained 250 mg of N-[6-(2-hydroxyethoxy)-5-(o-methoxybenzyl)-4-pyrimidinyl]-p-methoxybenzenesulfonamide, melting point 161°-162° C.

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