Sodium Iodide → HCID 18001014, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-ethoxycarbonylmethyl-1-[4-(2-chloroethoxycarbonylamino)-2-chlorobenzoyl]-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine (0.9 g), potassium carbonate (0.40 g) and sodium iodide (0.43 g) in dimethylformamide (15 ml) is stirred at 80° C. for 8 hours. To the reaction solution is added ethyl acetate, and the mixture is washed with water, and the organic layer is dried over magnesium sulfate, filtered, and evaporated to remove the solvent. The residue is purified by silica gel column chromatography (solvent; dichloromethane:methanol=30:1) to give 5-ethoxycarbonylmethyl-1-[4-(2-oxotetrahydrooxazol-3-yl)-2-chlorobenzoyl]-2,3,4,5-tetrahydro-1H-1,5-benzodiazepine (0.65 g) as colorless amorphous.

Provenance & Evidence