Triethylamine → HCID 76568030, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of racemic (2′R,3R,4′S)-6-chloro-4′-(3-chlorophenyl)-2′-[5-iodo-2-(2-hydroxy-ethoxy)-phenyl]spiro[3H-indole-3,3′-piperidine]-2,6′(1H)-dione (6.05 g, 9.71 mmol) prepared in example 190c in DMF (80 mL) were added trimethylsilylacetylene (10 mL), CuI (40 mg), Et3N (50 mL), PdCl2(Ph3P)2 (Aldrich, 205 mg, 0.29 mmol) were added. The mixture was purged with nitrogen and heated at 76° C. for 1.5 h, then cooled to room temperature. The mixture was poured into water, extracted with EtOAc several times. The extracts were combined and dried with sodium sulfate and dried to give a foam. The foam was purified by chromatography to give the title compound as a light yellow solid. Yield 3.28 g, 57%.

Provenance & Evidence