Imidazole → HCID 131719596, compound

Participants

Reaction Steps

To the solution of 1.51 g of the compound (10) obtained in Example 10 and 0.48 g of imidazole in 3.5 ml of dimethylformamide, 0.55 g of tert-butyldimethylsilyl chloride was added dropwise, and the mixture was stirred for 23 hours at room temperature. Chloroform was added to the reaction solution, and the mixture was washed with water. The organic layer was dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The resulting residue was purified by silica gel column chromatography, and 180 mg (yield: 9.4%) of the title compound was obtained from the fraction of ethyl acetate-methanol (19:1).

Provenance & Evidence