Potassium Hydroxide → HCID 69458810, compound

Participants

Reaction Steps

A solution of 3-{(2 R)-2-[(5R)-5-(3-chlorophenyl)-2-oxooxazolidin-3-yl]propyl}-1H-indole-7-carboxylic acid diethylamide (10 mg, 0.022 mmol), methyl iodide (21 μL, 0.33 mmol), potassium carbonate (90 mg, 0.66 mmol) in acetone (2 mL) is refluxed for 24 hours. After cooling, the insoluble materials are removed by filtration, and the filtrate is concentrated under reduced pressure. The residue is purified by preparative TLC (silica gel, 0.5 mm, 20×20 cm, methanol/chloroform=1/30) to give 3-{(2R)-2-[(5R)-5-(3-chlorophenyl)-2-oxooxazolidin-3-yl]-propyl}-1-methyl-1H-indole-7-carboxylic acid diethylamide (3 mg). A solution of 3-{(2R)-2-[(5R)-5-(3-chlorophenyl)-2-oxooxazolidin-3-yl]-propyl}-1-methyl-1H-indole-7-carboxylic acid diethylamide (3 mg, 0.0064 mmol) and potassium hydroxide (0.6 g) in water (1 mL) and ethanol (1 mL) is stirred at 70° C. for 7 hours. After cooling, ethanol is removed by distillation, and water is added thereto. The mixture is extracted with ethyl acetate, and the organic layer is washed with a saturated aqueous sodium hydrogen carbonate solution, dried over sodium sulfate, and concentrated. The residue is purified by silica gel column chromatography (60, 2 g, a saturated ammonia solution in chloroform) to give 3-{(2R)-2-[2-(3-chlorophenyl)-(2R)-2-hydroxyethyl-amino]propyl}-1-methyl-1H-indole-7-carboxylic acid diethylamide (2 mg, yield: 71%).

Provenance & Evidence