Methyl iodide → 1-(4-Fluoro-2,3-dihydroindol-1-yl)-2-(4-methoxy-6-morpholin-4-ylpyrimidin-2-yl)propan-1-one

Participants

Reaction Conditions

Reaction Steps

300 mg of 1-(4-fluoro-2,3-dihydroindol-1-yl)-2-(4-methoxy-6-morpholin-4-yl-pyrimidin-2-yl)ethanone dissolved in 10 ml of tetrahydrofuran are cooled to −78° C. using a dry ice bath. 2.65 ml of 1N potassium bis(trimethylsilyl)amide in THF are slowly added while maintaining the temperature at −75° C. After 30 minutes of stirring, 0.125 ml of methyl iodide is added and the stirring is continued for 2 h 15. The reaction mixture is diluted with 50 ml of a saturated ammonium chloride solution and 30 ml of ethyl acetate. After settling out, the organic phase is washed with 5 times 15 ml of water, dried over magnesium sulfate, filtered, and then concentrated under reduced pressure. The residue is purified by silica column chromatography, elution being carried out with a 99/01 mixture of dichloromethane and methanol, so as to give 215 mg of 1-(4-fluoro-2,3-dihydroindol-1-yl)-2-(4-methoxy-6-morpholin-4-ylpyrimidin-2-yl)propan-1-one in the form of a white solid, the characteristics of which are the following:

Provenance & Evidence