HCID 23285064, compound → HCID 23285016, compound

Participants

Reaction Steps

1.50 g of 7-chloro-3-methylthio-4-{4-[N-methyl-N-(2-phenylethyl)amino]-1-piperidinylcarbonyl}-oxindole was added to a suspension of 15 g of Raney nickel in 30 ml of methanol. The mixture was stirred at room temperature for 1 hour. The Raney nickel was separated by decantation and washed with methanol. The decanted solution and the washings were combined and concentrated under reduced pressure. The residue was purified by a silica gel column chromatography (eluant: methylene chloride/methanol=30/1). The product was converted into a hydrochloride in ethanol to obtain 0.63 g of 7-chloro-4-{4-[N-methyl-N-(2-phenylethyl)amino]-1-piperidinylcarbonyl}oxindole hydrochloride as a colorless amorphous.

Provenance & Evidence