Sodium hydride → 4-(2-Chlorophenyl)-3-ethoxycarbonyl-5-methoxycarbonyl-6-methyl-2-[2-(2-pyrimidinyloxy)ethoxymethyl]-1,4-dihydropyridine

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Reaction Steps

Sodium hydride (90 mg. of an 80% by weight dispersion in oil) was added to a solution of 4-(2-chlorophenyl)-3-ethoxycarbonyl-2-(2-hydroxyethoxymethyl)-3-methoxycarbonyl-6-methyl-1,4-dihydropyridine (0.60 g) in tetrahydrofuran (20 ml) and the mixture stirred at room temperature for 45 minutes and then treated with 2-chloropyrimidine (0.17 g). The mixture was stirred at room temperature for 3 days and evaporated. The residue was dissolved in ethyl acetate and the solution washed successively with 2M hydrochloric acid, 5% aqueous sodium carbonate solution and brine, dried over MgSO4 and evaporated. The residue was crystallised from ether to give the title compound (90 mg), m.p. 101°.

Provenance & Evidence