Diethyl Ether → 1-[(3-Fluorophenyl)methyl]-4-(piperazin-1-yl)-1,3-dihydro-2H-indol-2-one

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Reaction Steps

4-[1-(3-Fluoro-benzyl)-2-oxo-2,3-dihydro-1H-indol-4-yl]-piperazine-1-carboxylic acid tert-butyl ester (115 mg) was dissolved in 2 mL of EtOH and 500 uL of 2.0 N HCl/EtOH was added. The solution was heated to reflux on a steam bath for 30 minutes and then cooled to room temperature. Diethyl ether was added slowly to precipitate 1-(3-Fluoro-benzyl)-4-piperazin-1-yl-1,3-dihydro-indol-2-one as a hydrochloride salt. MS: 326 (M+H)+.

Provenance & Evidence