Lawesson's reagent → 1-acetyl-6-chloro-4'-[5-chloro-2-(2-methanesulfonylamino-1,1-diethyl-2-oxo-ethoxy)-phenyl]-2'-(5-fluoro-2-methyl-phenyl)-6'-thioxo spiro[3H-indole-3,3'-piperidine]-2(1H)-one

Participants

Reaction Conditions

Reaction Steps

A mixture of chiral (2′S, 3S, 4′R)-1-acetyl-6-chloro-4′-[5-chloro-2-(2-methanesulfonylamino-1,1-diethyl-2-oxo-ethoxy)-phenyl]-2′-(5-fluoro-2-methyl-phenyl)-spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (50 mg, 0.07 mmol) and Lawesson's Reagent (56 mg, 0.126 mmol) in toluene (5 mL) was heated at 125° C. for 1.5 h. The mixture was purified by flash column chromatography to give the title compound as white solid (15 mg).

Provenance & Evidence