Water → HCID 76568130, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of racemic (2′R,3S,4′R)-6-chloro-4′-[5-chloro-2-(1-ethoxycarbonyl-1-methyl-ethoxy)-phenyl]-2′-(5-chloro-2-fluoro-phenyl)spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (185 mg), NaOH (120 mg), H2O (15 mL) and methanol (5 mL) was heated at 80° C. for 2 h. Then the mixture was concentrated. The remaining aqueous solution was acidified to “pH” 1 by concentrated aqueous HCl solution. The white precipitate was collected by filtration to give title compound as a white solid (150 mg).

Provenance & Evidence