Imidazole → HCID 15728608, compound

Participants

Reaction Steps

To a solution of 400 mg of 2-methylthio-4-hydroxy-4-(4-phenoxybutyl)-2-cyclopentenone obtained in Example 52 or Example 53 dissolved in 4 ml of dimethylformamide were added 279 mg of imidazole and 260 μl of chlorotrimethylsilane, under ice-cooling and stirring, and the mixture was stirred at 0° C. for 3 hours. The reaction mixture was extracted with an addition of water and hexane. The organic layer was washed with saturated aqueous sodium chloride, and the product dried over anhydrous sodium sulfate, filtered and concentrated, followed by silica gel column chromatography, to give 445 mg (yield 89%) of 2-methylthio-4-(4-phenoxybutyl)-4-trimethylsilyloxy-2-cyclopentenone.

Provenance & Evidence